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In December 2022, representatives adopted the Kunming-Montreal Global Biodiversity Framework (GBF). The overarching goal of the agreement is to halt biodiversity loss and restore natural ecosystems – and a much-cited target is the "30x30" target of protecting and restoring 30% of Earth by 2030. Salt marshes are highly productive coastal ecosystems relevant for both biodiversity and climate change mitigation but have experienced historical major losses and are among the habitats in need of protection and restoration. Currently, there is little knowledge about how salt marshes are valued from a societal perspective, which has important management implications. This is particularly the case in the Nordic region where awareness of these habitats is low. Using survey data from Norway, Sweden, Finland, Denmark, and Germany, this study contributes understanding how citizens value salt marshes by examining support for different management initiatives framed as contributing to the goal of either biodiversity protection or climate change mitigation. Generally, both respondents primed with information about the importance of salt marshes for biodiversity and for climate change mitigation were supportive of the management initiatives despite having little previous knowledge of salt marshes. For one initiative, respondents who were informed of the importance of salt marshes for biodiversity were slightly more likely to support the management initiative than those informed about the importance of salt marshes for climate change mitigation. Our study provides guidance for assessment of trade-offs from a human valuation perspective, thus supporting policy makers when considering arguments for salt marsh management within the context of the 30x30 targets for protected areas. • When salt marshes were framed as important ecosystems, there was public support for management initiatives. • Respondents primed with information on the potential importance of salt marshes for climate change mitigation were not more supportive of management initiatives. • Initiatives with the least direct monetary contribution gained the most public support. • Public support for salt marsh management initiatives differed based on country and, in some cases, age and gender. [ABSTRACT FROM AUTHOR]

Public participation in urban forest conservation has significant potential for climate change mitigation. However, there is limited research specifically addressing women's behavioral intentions towards participating in urban forest conservation for this purpose, despite the increasing recognition of the importance of gender-specific perspectives in climate change mitigation. Understanding women's intentions towards engaging in urban forest conservation is crucial for developing effective strategies to mitigate climate change. This study aims to explore the influencing factors that shape women's intentions towards urban forest conservation as a measure to mitigate climate change. The extended theory of planned behavior serves as the theoretical framework, incorporating climate change awareness and perceived benefits of urban forests for climate change mitigation. A sample of 391 women participated in the study, and data were collected through a structured questionnaire. The results revealed that the original model accounted for 48 % of the variance in women's intentions towards urban forest conservation. By incorporating additional constructs into the extended model, the explanatory power increased to 66 %. Furthermore, the data analysis demonstrated that all variables in both the original and extended models significantly influenced women's intentions for urban forest conservation. In developed model the climate change awareness (ƛ= 0.366), perceived behavioral control (ƛ= 0.256), perceived benefits of urban forests (ƛ= 0.240), subjective norms (ƛ= 0.182), and attitude (ƛ= 0.145), had the most impact, respectively. These findings emphasize the importance of considering psychological factors in promoting women's active involvement in urban forest conservation for effective climate change mitigation. The study has important policy implications, as policymakers and practitioners should prioritize efforts to enhance climate change awareness among women and emphasize the perceived benefits of urban forests in addressing climate change. Further research is warranted to explore behavioral patterns and actual conservation practices among women in diverse cultural and social contexts. [Display omitted] • The extension in theory of planned behavior improved basic model explanatory power. • The extended version explained 66 % of women intention. • Climate change awareness and perceived benefits of urban forestssignificantly influenced women's intention. • Urban managers should consider the importance of psychological variables. [ABSTRACT FROM AUTHOR]

• Displacing fossil fuels are imperative for climate change mitigation. • Uncritically unleashed, alternatives dispossess resource dependent peoples. • Solar "Parks" in Rajasthan are causing the premature death of agrarian lifeways. • Ambitions for "green" extractivism in Luapula undermine sustenance of villagers. • Our cases show how energy transitions can produce exposure to premature death. Sixty-five million years into the era of New Life (the Cenozoic), we find ourselves in what might be the Cenozoic's last epoch, the Necrocene. To mitigate the crises provoked by exhuming and burning dead matter (i.e. fossil fuels) from the depths of the earth, the industrialized world has reached a consensus to build massive infrastructures for lower-carbon energy and rapidly electrify all sectors. Through international agreements that take a techno-managerial approach to decarbonization, nation-states have committed to solutions that require an unprecedented demand for the extraction of transition materials (e.g. cobalt, copper, manganese), alongside the appropriation of land used for centuries by agropastoralists for subsistence and the more-than-human as a habitat, with the moral rectitude of taking climate action. Despite a deluge of scholarly work illustrating the futility of decoupling such transitions from environmental destruction, climate mitigation through technological substitution continues its march toward economic growth, fed by the logic of "green" extractivism. In this study, we interrogate the utopian discourses of energy transitions by drawing from fieldwork examining the implementation of industrial-scale solar plants in Rajasthan, India, and on a potential resource frontier in Luapula, Zambia for the high-grade manganese required in electric vehicle batteries. We ask whether lower-carbon energy transitions create conditions of precarity and death. The two case studies reveal a trajectory that exacerbates precarity and hastens social and premature death in deeply unequal ways, underpinned by ongoing climate coloniality: the essence of electrified Necropolitics in the Necrocene. [ABSTRACT FROM AUTHOR]

China has made substantial investment in agricultural research and development (R&D) to promote technological change (TC). Although the role of TC in enhancing agricultural production and mitigating environmental impacts is widely recognized in separate contexts, knowledge about its' effects on food security and the environment, especially with a focus on China, is still lacking. This study uses an agro-economic optimization model to assess the impact of TC on food security and climate change mitigation. Our results indicate that TC plays an important role in improving agricultural productivity, which, in turn, contributes to a comparative advantage in agricultural trade. It also strengthens food security through lowering food prices. By contrast, a higher TC level increases greenhouse gas (GHG) emissions, albeit marginally, due to higher agricultural production for exports. This indicates a rebound effect of agricultural productivity on GHG emissions. Therefore, additional efforts are required in China to improve food security without compromising GHG mitigation. • Technological change (TC) enhances China's agricultural production and comparative advantage in trade. • A higher level of TC within China's agriculture and land-use (AFOLU) sectors could contribute to lowering food prices in China. • Increase in TC within China's AFOLU sectors can causes trade-offs between food security and climate change mitigation. [ABSTRACT FROM AUTHOR]

Agriculture and food systems are central to managing biodiversity loss and climate change. Future changes in agriculture and food systems are highly uncertain and depend on underlying socio-economic developments. Scenarios allow scientists, policy and industry decision-makers to consider such uncertainties and describe a spectrum of plausible futures. The Shared Socioeconomic Pathways for European agriculture and food systems (Eur-Agri-SSPs) semi-quantitatively describe pathways along future challenges for climate change mitigation and adaptation. However, additional or adapted drivers (i.e. scenario elements), like national policies or adaptations of European policies, are relevant to frame plausible future developments at national scales. We aim to set the standard for developing country and sector-specific SSPs in a participatory process by developing and applying an eleven-step protocol and engaging a diverse group of stakeholders throughout the whole research process. By downscaling the Eu-Agri-SSPs to a national level, we contribute to improve their usability in academia, governments and industry. This is achieved by matching qualitative pathways with the needs of integrated land use models (used to simulate land use scenarios), and by quantifying selected drivers for future developments together with stakeholders. In particular, we estimate 20-year trends (2000–2019) and apply fuzzy set theory to quantify ten scenario elements, which are typically required in integrated land use models. The final scenarios describe the semi-quantitative development for 79 scenario elements along the five topics "Population and urbanization", "Economy", "Policy and institutions", "Technology", and "Environment and natural resources" for the five AT-Agri-SSPs. Exemplary results reveal that stakeholders expect payments for agri-environment-climate measures to increase to 1200 million € in AT-Agri-SSP1 or to decline to 267 million € in AT-Agri-SSP3, 4 and 5. For direct payments, a complete phase-out was specified for AT-Agri-SSP1 and an increase to 711 million € in AT-Agri-SSP3. We discuss 14 lessons learnt and recommendations for future scenario processes and participatory quantification. Recommendations include: tailoring the assignment of scenario elements for quantification to stakeholders' expertise, keeping survey complexity low, providing historical and relevant SSP data, and encouraging stakeholders to jointly quantify interdependent elements. The AT-Agri-SSPs can inform policy-making, decision-making in industry, and research on the agriculture and food systems. • We developed an eleven-step, iterative protocol to develop the AT-Agri-SSPs. • Austrian stakeholders were engaged in five of the eleven working steps. • We defined semi-quantitative development directions for 79 scenario elements. • We applied fuzzy set theory for the participatory quantification of 10 scenario elements. • We discuss lessons learnt for future scenario processes and participatory quantification. [ABSTRACT FROM AUTHOR]

Against the backdrop of a fragmented and evolving governance landscape, this paper examines how effective climate commissions are in engaging the public to co-produce local climate action in the UK. Climate commissions are emerging amid heightened concerns regarding the top-down style of policymaking on climate change and resource-constrained local authorities. However, less is known about how they engage the public who are pivotal for climate action, both in signalling greater ambition from governments and through their own mitigation and adaptation efforts. This paper draws on qualitative interviews with an array of individuals both inside and outside climate commissions in the UK, and utilises Cash's theoretical framework of 'salience, legitimacy and credibility' to assess how effective climate commissions are in engaging the public to co-produce local climate action. The findings indicate a discernible chasm between commissions and the broader public. Equally however, they provide hopeful perspectives into the effect that more collaborative engagement, that speaks to local concerns and leverages local knowledge, would have on commissions' 'salience, legitimacy and credibility' and, additionally, the legitimacy of local authorities. Moreover, they suggest that deeper collaboration with local networks of community groups, who are not yet represented on commissions, could foster more sustained climate action. It concludes by considering the novel implications of these emergent insights for the Cash framework and what this means for commissions in their future engagement with the public. • Knowledge co-production resonates in both theory and practice. • Local and grassroot action is critical to meet climate mitigation and adaptation goals. • Ensuring 'salience, legitimacy and credibility' can lead to more effective climate policy. • Climate commissions need to better leverage local knowledge to drive climate action. • Community groups are under-utilised in climate conversations and decision-making. [ABSTRACT FROM AUTHOR]

• Willingness to pay for BECCS in Denmark and factors influencing it are investigated. • Willingness to pay is linked to the view of BECCS as necessary for mitigation. • View of BECCS as a necessity reveals either support or reluctant acceptance. • Preference for renewable energies revealed by respondents unwilling to pay. • Age, views on climate change and sustainability of biomass influence WTP. Most climate change mitigation scenarios rely on negative emissions technologies like bioenergy with carbon capture and storage (BECCS). However, little is known about public support for BECCS. This paper gauges Danes' willingness to pay (WTP) for biomass with carbon capture and storage and examines factors influencing it. Denmark is a suitable case study given its reliance on biomass and negative emissions to achieve climate targets. Results from a questionnaire-based survey indicate a mean WTP of 3072 DKK (412 EUR) per household per year. This correspondents to a 12% increase in heat and electricity expenses. The need for negative emissions is the main stated reason for WTP. This may be interpreted as reflecting either support for, or reluctant acceptance of, BECCS. Results show that being younger, being concerned about climate change and believing that it is mainly caused by human activity, and believing in the mitigation potential of biomass and that sustainability is a precondition of its use have a significant effect on WTP. Public views on BECCS are complex but must be acknowledged if discussion of the role of BECCS in the decarbonisation agenda is to move forward. [ABSTRACT FROM AUTHOR]

• Analyses CCS technological innovation system dynamics in Norway. • Employs the technological innovation system (TIS) framework. • Overall the CCS innovation system has intermediate-weak performance. • Momentum is however positive, albeit future prospects being uncertain. CO 2 Capture and Storage (CCS) is today seen as a key technology to cut carbon emissions in many hard-to-abate sectors such as energy-intensive processing industries and the waste sector. Although CO 2 capture is technically possible, key challenges for realizing CCS persist. Over the past decade, CCS has taken a new direction with more focus on application in energy-intensive industries rather than the energy sector. For CCS value chains to materialize, innovation and implementation thus needs to occur amongst an array of actors, with different innovation modes, institutions, and policy regimes, and with varying sectoral capacities for adaptation and change. There has so far been limited social science research on CCS innovation dynamics, which we suggest approaching as a socio-technical change process. To better understand this process, we draw on the sustainability transitions research field and employ the Technological Innovation System (TIS) framework to study the CCS innovation system in Norway. We find that, overall, the Norwegian CCS TIS displays systemic weaknesses for example in the form of market formation and resource mobilization, yet recent developments suggest a relatively positive momentum for this technological field which is key to meeting Norwegian and global climate mitigation targets. [ABSTRACT FROM AUTHOR]

Promoting ocean literacy can lead to numerous benefits, such as improved marine ecosystem comprehension, responsible environmental behavior, and support for marine conservation policies. However, past research focused on the contribution of ocean literacy to the public's support for marine policy and management, failing to expand the concept to broader issues like climate change. This study aims to assess people's ocean literacy and its association with climate change mitigation behaviors, using a nationally representative survey that collected 2000 responses in the Republic of Korea in November 2022. The results provide evidence that people with a better understanding of the ocean are more likely to follow recommendations for climate change mitigation, including reducing disposable products, using public transportation, and using eco-friendly products. This association was robust against varying levels of climate change risk perception. These findings imply that promoting public ocean literacy can be an effective strategy for encouraging people to engage in efforts to mitigate climate change in their daily lives. [ABSTRACT FROM AUTHOR]

• Mapping material stocks at 10 m resolution for the entire UK and IRL. • 9 building types, 32 mobility infrastructure types, 12 materials. • Building stocks per capita are surprisingly similar for most population densities. • Infrastructure stocks per capita decrease with higher population densities. • High-resolution maps can inform circular economy strategies and actions. Understanding the size and spatial distribution of material stocks is crucial for sustainable resource management and climate change mitigation. This study presents high-resolution maps of buildings and mobility infrastructure stocks for the United Kingdom (UK) and the Republic of Ireland (IRL) at 10 m, combining satellite-based Earth observations, OpenStreetMaps, and material intensities research. Stocks in the UK and IRL amount to 19.8 Gigatons or 279 tons/cap, predominantly aggregate, concrete and bricks, as well as various metals and timber. Building stocks per capita are surprisingly similar across medium to high population density, with only the lowest population densities having substantially larger per capita stocks. Infrastructure stocks per capita decrease with higher population density. Interestingly, for a given building stock within an area, infrastructure stocks are substantially larger in IRL than in the UK. These maps can provide useful insights for sustainable urban planning and advancing a circular economy. [ABSTRACT FROM AUTHOR]

• Carbon capability (CC) is an interdisciplinary, integrative framework. • Develops a new theoretical framework for CC. • Presents new data from an extensive survey on CC of UK householders. • CC in the UK is improving, but too slowly. The urgent need to address climate change requires widespread behavioural changes and structural reforms. However, the adoption of low-carbon practices is limited by individual, social and structural constraints. Carbon capability (CC) is an interdisciplinary, integrative framework which bridges the gap between individual-level behaviours and systemic change. This article develops a new theoretical framework for CC, with insights from the capability approach, social practice theory, and recent work in environmental psychology. Drawing on a nationally representative survey from the UK, CC is evaluated across six key domains of practice: energy, transport, food, shopping, influence, and citizenship. Our revised theory emphasises the diverse forms that CC can take, highlighting the multiple roles that individuals (and other actors) can play in driving climate action, as consumers, influencers, organisational members, and citizens. Results show that the UK population is becoming more carbon capable over time, with increasing knowledge about climate change and some adoption of low-carbon practices. However, transformative change is still lacking. The study highlights the importance of reorienting systems of provision to enable low-carbon practices and set capability ceilings to limit excessive consumption. [ABSTRACT FROM AUTHOR]

• Deforestation baselines are inconsistent across REDD+ methodologies. • Current REDD+ methodologies fail to properly measure additionality. • New REDD+ methodologies need to be urgently developed. The number of voluntary interventions seeking to generate carbon offsets by reducing deforestation and forest degradation, generally known as REDD+ projects, has increased significantly over the past decade. Offsets are issued based on project performance in comparison to a baseline scenario representing the expected deforestation in a project area in the absence of REDD+. Baselines from most ongoing REDD+ projects were established following four methodologies approved by the largest voluntary carbon offset certification scheme worldwide, the Verified Carbon Standard (VCS) from Verra. These methodologies often rely on oversimplified assumptions about deforestation that remain overlooked by project developers, certification bodies, and buyers. Here, we explore what these methodological assumptions are and their implications. We then construct alternative deforestation baselines for four ongoing VCS-certified projects using the four VCS-REDD+ methodologies and examine how they differ. Overall, we observe large discrepancies among the project baselines. On average, the highest baseline value we calculate for each project is more than 14 times greater than the lowest value across the four projects studied. This illustrates the lack of robustness and consistency across the VCS-REDD+ methodologies. The results also call into question the additionality of carbon offsets issued based on these methodologies. New baseline methods need to be urgently developed if voluntary REDD+ projects are to reliably estimate their additional contribution to climate change mitigation. The incorporation of causal inference methods represents current best practices in measuring the efficacy of REDD+ interventions. Regrettably, these methods remain largely overlooked by project developers, certification standards, and governmental and international bodies. Dynamic baselines developed by independent analysts could potentially enable project developers to distinguish the impacts of the REDD+ intervention from confounding factors and properly estimate additionality. [ABSTRACT FROM AUTHOR]

• Future orientation positively predicts conventional climate action intentions. • Present orientation negatively predicts conventional climate action intentions. • Environmental cognitive alternatives and eco-anxiety mediate these relationships. • Both orientations have positive indirect relationships with radical intentions. Motivating climate action is challenging because the worst consequences of climate change are in the future, triggering a conflict between short- and long-term interests. Prior research suggests that orienting to the future facilitates pro-environmental behavior whereas orientation to the present inhibits it; however, we consider whether different temporal orientations simply make some kinds of climate action more attractive than others. The present study tests this using structural equation modeling with two Australian samples. In a first exploratory model (N = 967), followed by a direct, pre-registered replication (N = 953), we examine how two facets of temporal orientation – consideration of future and immediate consequences – predict intentions to engage in three kinds of climate action at individual and collective levels: conventional private-sphere, conventional public-sphere, and radical public-sphere climate action. Consistent with past research, higher consideration of future consequences and lower consideration of immediate consequences are associated with intentions to take conventional action directly and indirectly via eco-anxiety and/or access to environmental cognitive alternatives. In contrast, consideration of future and immediate consequences are only indirectly related to intentions to take radical action. [ABSTRACT FROM AUTHOR]

• Little is known about the level of climate change to which societies can adapt to. • Limits to adaptation are more likely to be reached and breached in the future. • Limits can be viewed from a justice informed perspective and coupled with modelling. • Assessing limits is central to national and international adaptation policymaking. Anthropogenic climate change is already causing dangerous and widespread disruptions in global ecological and social systems and affects the lives of billions of people around the world. Even with scaled-up risk management and adaptation, the limits of adaptation will often be reached. Currently, very little is known about the degree to which societies can adapt to climate change, and where and when limits to adaptation will be reached. In this paper, we conceptualize adaptation limits through a novel methodological framework, assess adaptation limits along adaptation pathways, and propose a research strategy for empirical and model-based limits assessments based on biophysical and socio-economic data. Assessing limits is central to national and international adaptation policymaking. More efficient adaptation can also help climate mitigation efforts. [ABSTRACT FROM AUTHOR]

• Mixed-methods study, relying on 44 focus groups and a survey in 22 countries. • Cross-country variances in climate change beliefs and transformation pathways. • Climate harm and worry predict support for carbon removal and solar geoengineering. • Support for these technologies hinges on them being tied to credible climate action. • Prioritizing climate policies and action that tackle root causes considered key. As emerging methods for carbon removal and controversial proposals around solar radiation modification are gaining traction in climate assessments and policy debates, a better understanding of how the public perceives these approaches is needed. Relying on qualitative data from 44 focus groups (n = 323 respondents), triangulated with a survey conducted in 22 countries (n = over 22 000 participants), we examine the role that climate change beliefs and attitudes towards climate action play in the formation of public perceptions of methods for carbon removal and solar radiation modification. We find that nationally varying degrees of perceived personal harm from climate change and climate worry predict support for these technologies. In addition to different perceptions of the problem, varying perceptions of the solution – i.e. the scope of climate action needed − shape publics' assessment. Various tensions manifest themselves in publics' reflections on the potential contribution of these climate technologies to climate action, including "buying time vs. delaying action", "treating the symptoms vs. tackling the root causes", and "urgency to act vs. effects only in the distant future". We find that public perceptions are embedded in three broader narratives about transformation pathways, each reflecting varying notions of responsibility: (i) behavior change-centred pathways, (ii) top-down and industry-centred pathways, and (iii) technology-centred pathways. These results suggest that support for the deployment of the climate technologies studied hinges on them being tied to credible system-wide decarbonization efforts as well as their ability to effectively respond to a variety of perceived climate impacts. [ABSTRACT FROM AUTHOR]

• We conducted unique public visioning workshops on radical low-carbon lifestyles. • We found strong public support for many low-carbon lifestyle strategies and futures. • Narratives of inaction create a public discourse of delay, undermining this support. • Narratives of inaction held emotional resonances that evoked defensive responses. • Countering this public discourse of delay is essential for meaningful climate action. Urgent action to tackle the climate crisis will only be possible with significant public support for radical lifestyle change. Arguments that seek to delay climate action and justify inadequate mitigation efforts, often termed 'discourses of delay', are widespread within political and media debate on climate change. Here we report the results of novel public deliberation and visioning workshops, conducted across the UK in 2020/2021 to explore visions of a 1.5 °C future. We found that despite very strong public support for many low-carbon lifestyle strategies in principle, entrenched discourses of delay are limiting beliefs that a fair, low-carbon future is possible. Consisting of four overarching narratives of climate inaction (Resisting personal responsibility; Rejecting the need for urgency; Believing change is impossible; and Defending the social contract), this public discourse of delay is characterised by three distinct repertoires (each with its own emotional resonance), that act to weaken support for climate action by producing defensive responses to discussions of low-carbon lifestyle change and undermining public sense of agency. We argue that countering these narratives, and the defensive responses they invoke, is essential for achieving meaningful public action on climate change. [ABSTRACT FROM AUTHOR]

Climate change poses a risk to agricultural activity. Understanding farmers' behaviors is increasingly important for managing climate risks and improving their adaptive capacity. This study aims to identify the key risk-related drivers influencing several adaptation and mitigation strategies by adopting various Climate-Smart Agriculture (CSA) technologies to reduce climate change vulnerability. We investigate the interrelated nature of the adoption of CSA technologies related to soil fertility, soil conservation, agroforestry, agro-advisory apps, and alternative coffee farming practices. To explore the role of the perceived risks related to CSA technology adoption, we constructed an extended model that combines protection motivation theory, perceived farmers' adoption risks and social and demographic determinants. We collected empirical data from 519 coffee farmers in Costa Rica and analyzed the data through a multivariate probit technique. The analysis reveals how the influence of perceived climate risks severity, perceived vulnerability, response efficacy, self-efficacy, and perceived cost changes according to the CSA technology. As for the perceived adoption risks, we show that the adoption likelihood of CSA technologies focused on mitigation decreases with increasing perceived adoption risk. Other determinants, such as the number of coffee buyers and the farmers' membership in an organization, steer the adoption of soil fertility practices, agroforestry, and agro-advisory mobile apps. Main theoretical implications include the integration of the CSA adoption risk-related perceptions to the protection motivation theory, since it reflects on farmers' fear of potential losses or additional costs associated with implementing these practices. The finding gives a nuanced explanation of farmers' decisions under pressing climate change threats. Practical implications for increasing CSA adoption are that CSA promotion programs must consider that farmers see CSA technologies as interrelated in their adoption decisions, meaning that more fruitful synergies could be promoted by acknowledging the bundled adoption of multiple CSA technologies. Thus, promoting a mix of CSA technologies and practices is essential for achieving resilience while increasing productivity. • Integrating risk-related perceptions gives a nuanced explanation of farmers' decisions under pressing climate change threats. • Risk-related drivers' had a diverse range of significance in explaining the adoption of CSA. • Perceived adoption risks negatively influence the likelihood of CSA adoption. • Group membership and the number of coffee buyers enhance multiple CSA adoption. • Implementing coordinated CSA policies that address adoption miscommunication can reduce barriers to CSA adoption. [ABSTRACT FROM AUTHOR]

• Buildings potential for climate change mitigation is high. • Mitigation actions in the buildings sector can have significant social and economic values. • These enable the achievement of 4 SDGs, reinforce 7 other. • And are linked to the achievement of 5 SDGs (SDG3, SDG7, SDG8, SDG11, and SDG13). • Trade-offs were identified for 9 SDGs. Buildings are responsible for a big part of total GHG emissions; therefore, their climate change mitigation potential is high. But research shows that mitigation actions in the sector can have significant social and economic values beyond reduction of energy consumption and the associated GHG emissions. This paper summarizes these multiple impacts of mitigation actions in buildings, which are related to microeconomic and macroeconomic effects, health impacts, environmental benefits, better management of natural resources, impacts on social well-being, and energy security implications, and assesses their interactions (synergies and trade-offs) with the UN SDGs. The findings of our analysis show that climate change mitigation actions in buildings enable the achievement of 4 SDGs, reinforce 7 others, and are inextricably linked to the achievement of 5 SDGs, namely SDG3: good health and well-being, SDG7: affordable and clean energy, SDG8: decent work and economic growth, SDG11: sustainable cities and communities, and SDG13: climate action. On the other hand, trade-offs were identified for 9 SDGs, with rather minor implications, which can be further eliminated with the implementation of appropriate policies. [ABSTRACT FROM AUTHOR]

[Display omitted] China is playing an increasing role in global climate change mitigation, and local authorities need more city-specific information on the emissions trends and patterns when designing low-carbon policies. This study provides the most comprehensive CO 2 emission inventories of 287 Chinese cities from 2001 to 2019. The emission inventories are compiled for 47 economic sectors and include energy-related emissions for 17 types of fossil fuels and process-related emissions from cement production. We further investigate the state of the emission peak in each city and reveal hidden driving forces. The results show that 38 cities have proactively peaked their emissions for at least five years and another 21 cities also have emission decline, but passively. The 38 proactively peaked cities achieved emission decline mainly by efficiency improvements and structural changes in energy use, while the 21 passively emission declined cities reduced emissions at the cost of economic recession or population loss. We propose that those passively emission declined cities need to face up to the reasons that caused the emission to decline, and fully exploit the opportunities provided by industrial innovation and green investment brought by low-carbon targets to achieve economic recovery and carbon mitigation goals. Proactively peaked cities need to seek strategies to maintain the downward trend in emissions and avoid an emission rebound and thus provide successful models for cities with still growing emissions to achieve an emission peak. [ABSTRACT FROM AUTHOR]

Global climate action is the grand challenge of the 21st century. Large reductions in greenhouse gas emissions are needed, with net-zero CO 2 emissions by mid-century a requirement for many scenarios that restrain global warming below 1.5 °C by 2100. This will require massive deployment of renewables such as ground-based solar and wind, increased long-distance grid transmission capacity, and electrification of much of the global economy. Increased electrification, coupled with rising standards of living in developing countries, will drive ever-larger electricity demand to 2050 and beyond. And the intermittency, land-use, and transmission requirements of ground-based solar and wind present challenges to large-scale deployment to meet Net Zero targets. Space-based solar power (SSP) presents an enticing alternative, and with full reusability of upcoming heavy launch vehicles and modular SSP architectures, the economics of deployment are expected to become favorable in the coming decades. Efforts exist today to deploy demonstrators this decade, with initial production systems by 2050. However, deploying SSP at the scale required to address rising, global electricity demand will itself require orders-of-magnitude greater launch frequencies. If heavy launch frequency does not increase quickly enough, due to environmental concerns, launch site competition, or other bottlenecks, the dropping cost of launch will not be sufficient to enable SSP for global impact this century. A space elevator (SE) development program like that proposed by the International Space Elevator Consortium (ISEC) offers an alternative delivery mechanism for scaling SSP beyond 2050, hedging the risk of reliance on a single delivery system while reducing the time required for large-scale SSP deployment. To de-risk possible futures in which SSP is a major part of the global energy mix this century, a dual space access architecture is proposed, leveraging the strengths of heavy launch and SEs together. Such an architecture would secure the future for green energy on Earth, in 2050 and beyond. • Net-zero CO 2 emissions by 2050 required for many climate scenarios with < 1. 5 °C warming. • Massive deployment of renewables and scale-ups of long-distance transmission required. • Space-based solar power (SSP) is becoming economically viable as an enticing alternative. • Reusable heavy launch must scale-up rapidly to deploy SSP at scale for net-zero. • A space elevator development program would de-risk delivery of SSP at scale. [ABSTRACT FROM AUTHOR]

Climate change poses a significant threat to humanity and human activity is largely responsible for it. Clinical microbiology laboratories have their unintended shares in carbon dioxide (CO 2) emissions. The aim of this study is to estimate CO 2 emission of a clinical microbiology laboratory and to propose initiatives to reduce the emissions. CO 2 emission of instruments was estimated based on their electricity consumption. CO 2 emitted in producing consumables was estimated by weighing the consumables needed to perform major tests in a large academic hospital. A systematic literature review was performed to identify studies on the impact of clinical microbiology laboratories on the environment. A short survey was sent to four major manufacturers of agar plates on initiatives to reduce the environmental impact of their products. Opinion was given on activities that can reduce CO 2 emission in laboratories. The study shows that the largest amount of CO 2 emission in the microbiological laboratories comes from consumables and personnel commuting. For example, the production and transportation of agar plates needed to culture samples for a year in a hospital with 1320 beds result in 16 590 kg CO 2 is emitted. All survey participants mentioned that they were committed to reduce environmental impact of their products. The initiatives to reduce CO 2 emission can be performed at the laboratory and at policy level, such as reducing the number of tests to only the necessary amount to reduce consumables. The calculations contribute to map CO 2 -related emissions in clinical microbiology laboratory activities, and the proposed initiatives to reduce the CO 2 may serve as starting point for further discussions. [ABSTRACT FROM AUTHOR]

• CAP subsidy regime is keeping peatland in production, causing high GHG emissions. • Emission abatement payments would lead to reduction in GHG emissions in agriculture. • The largest reduction in GHG emissions is by reducing peatland use and diet change. • Diet change with decrease in animal production would lead to a drop in farm income. • Just transition for farmers in livestock dominated regions is a policy challenge. This study, based on agricultural sector modelling, shows how changes in food consumption and land use measures can reduce GHG emissions from Finnish agriculture, and what are the impacts on regional levels of agricultural production, land use, GHG emissions, and farm income. The results demonstrate that it is difficult to achieve a large reduction in GHG emissions from agriculture by just changing diet alone. There is a big disparity in the distribution of farm income among the main regions in Finland due to a radical decrease in the consumption of livestock products. However, land use measures alone do not create the disparity in farm income among the different regions. Combining changes in diet and land use is the most effective in mitigating GHG emissions from agriculture, but the relatively disadvantaged regions with high shares of livestock production and peatlands may experience major restructuring in agriculture and land use. [ABSTRACT FROM AUTHOR]

Nature-based solutions (NbS) to climate change, strategies for mitigation and adaptation that rely on natural ecosystem processes to preserve biodiversity and enhance human well-being, hold the potential to contribute to numerous Sustainable Development Goals and uplift Indigenous Peoples and local communities (IPLCs) that pursue place-based livelihoods. The local ecological and societal expertise housed in Indigenous and local knowledge (ILK) could provide substantial benefits to the development, implementation, and evaluation of NbS projects. However, the historical treatment of ILK through misappropriation and biopiracy by the scientific community leave IPLCs politically, socially, culturally, and economically vulnerable to the growing interest in NbS applications to combat climate change. This paper addresses the current state of NbS focused on IPLCs by assessing peer-reviewed literature with criteria developed around the validation, integration, and protection of ILK. The assessment uncovered that most NbS literature does not discuss ILK or the contributions and participation of IPLCs. Such omissions could establish a dangerous precedent of ignoring or misappropriating ILK in NbS projects, possibly ushering in a new era in biopiracy. To facilitate better inclusivity of IPLCs, honor the dual purpose of NbS, and ensure the proper application of ILK in climate response, future NbS projects should detail how ILK is validated, integrated, and protected. • Nature-based solutions hold great potential to help climate mitigation and adaptation. • Indigenous and local knowledge can support nature-based solutions. • Climate projects should validate, integrate, and protect Indigenous knowledge. [ABSTRACT FROM AUTHOR]

The delivery of effective climate adaptation on the ground requires that the (climate adaptation) practitioner community be better incorporated into the process of producing, gathering and synthesizing evidence on adaptation as part of the Intergovernmental Panel on Climate Change (IPCC) process. This is not a recent issue and the co-production of knowledge, that goes beyond the traditional realms of 'science speaks to power', can only fully inform adequate and robust adaptation if it incorporates more practitioners, end-users, and those working at the interface of science, policy and practice. Through a high-level analysis of authors of the IPCC's Working Group II reports and special reports of AR6, we explore the evolution of representation of practitioners in IPCC WGII author teams from AR5 to AR6 and we find that practitioner representation has increased in AR6, however this remains low. We discuss how this low representation can affect readership and the potential to inform climate adaptation practice. As the IPCC evolves and reflects on its own practices, we seek to inform this process by providing further reflection on how the IPCC outputs can continue to be policy-relevant and maintain neutrality while ensuring accesibility and usability by climate adaptation practitioners. • Practitioner representation in IPCC WGII author teams remains low. • Adaptation practitioners provide invaluable knowledge on adaptation best practice. • Increased practitioners participation can help incorporate different perspectives. • The IPCC must prioritise diversity in authorship teams to inform climate action. [ABSTRACT FROM AUTHOR]

Climate change has led to a multitude of ecological disruptions and downstream reproductive health consequences that impair our reproductive capacity and, in turn, harm the health and survival of future generations. Atmospheric changes, driven by anthropogenic emissions, expose global populations to droughts, heat waves, rising sea levels, and extreme weather events-posing major threats to public health and exacerbating environmental health disparities. Existing evidence demonstrates the potential for climate-driven events to impact reproductive health outcomes, yet very few studies have explored this relationship. Recently, the American Society for Reproductive Medicine, the American College of Obstetricians and Gynecologists, and the International Federation of Gynecology and Obstetrics released position statements regarding reproductive health and environmental exposures. Unfortunately, such initiatives have yielded little action within the health care system. To address this stagnation, health care workers must meld research findings into actionable preventive medicine strategies and transition to a more action-oriented approach to address the climate crisis. The objective of this article is to elucidate the urgency of the climate crisis in relation to reproductive health and push the health care workers to recognize their intrinsic opportunity as leaders in climate action at local, state, national, and international levels. We call on health care organizations and health care workers to leverage their inherent positions as climate action leaders to increase climate resilience and mitigate climate-related adverse reproductive health outcomes. [ABSTRACT FROM AUTHOR]

The concept of just transition has emerged as an important governance framework guiding sectors transitioning from unsustainable to sustainable practices and is most dominant in debates on the energy transition. This research, in contrast, explores if and how this framework can make sense of the challenges facing Irish beef farming. The sector is transforming in response to an intersecting range of social, environmental, and market pressures. Beef farmers are at the centre of this, yet little research has been conducted gathering their perspectives on the changing state of their livelihoods and their concerns for the future. Here, we use a novel methodological approach, drawing on the concept of framing as a strategic communication device to explore the perspectives of key actors in this sector and a multi-dimensional environmental justice framework to identify the elements of (in)justice present within frames. This novel just transition frames and functions model exposes how misalignment between powerful key actors, concerned with distributional matters, and beef farmers, concerned with declining social status, shifting identities, and under-representation is found to be contributing to conflict. We show how the application of this model can inform pathways to just and sustainable futures. • Beef farmers in Ireland are protesting due to the pressures on their lives and livelihoods. • Just transition planning has not yet been applied to the agriculture sector in Ireland. • Changing farming practices towards sustainability also drives changes in community structures and identities. • Social and cultural considerations are part of a just transition for rural communities. • Rural communities should be active participants in climate action planning and the transition to sustainable systems. [ABSTRACT FROM AUTHOR]

In recent years tree planting as a response to climate change has acquired a very high profile amongst policy-makers, scientists, the media, and the public. This 'afforestation', however, requires space: that is, land. Agriculture currently occupies very large areas of land globally meaning that it is commonly targeted as needing to make way for tree planting, and making farmers important gatekeepers to this climate change mitigation strategy. Given the importance of farming sector media outlets in reflecting, shaping and leading values and attitudes amongst the agricultural community, this paper investigates how tree planting is presented within the UK's two leading sectoral publications, Farmers Guardian and Farmers Weekly. We sample coverage at four points over a two-year period (2019–2021) which began with high-profile national media and scientific engagement with the topic. Our analysis reveals very low levels of coverage within these key publications with, on average, just 1 in 200 articles within our sample focussing on tree planting. Within this limited coverage we identify four themes which range from hostility towards the notion of trees on farms replacing agricultural practices, through to occasional recognition of the positive roles that trees on farms can play in climate change mitigation. Arguably, the lack of legitimisation within the coverage constitutes a significant barrier to woodland expansion on agricultural land. We conclude that farming media outlets could play a much stronger role in supporting the agricultural community to understand how it could contribute to climate change mitigation through bringing trees 'in' to farming systems, and to the normalisation of this within modern farming culture. • Farmers are gatekeepers to tree planting as a climate change mitigation strategy. • Investigates how tree planting is presented in the UK's farming sector press. • Our media analysis reveals on average, just 1 in 200 articles focus on tree planting. • Themes range from hostility to trees on farms to the positive impacts they can have. • Farming media could play a stronger role in bringing trees 'in' to farming systems. [ABSTRACT FROM AUTHOR]

Woody biomass energy makes up a large share of renewable energy consumption in the EU, and the largest share in countries like Denmark. However, little is known about how the public perceive it. This paper presents the results of a questionnaire-based survey of the public in Denmark focusing on attitudes toward woody biomass for energy. The main findings are that, while more people favor than oppose it, a large proportion are undecided about the use of woody biomass. The survey also revealed a lack of knowledge about this energy source. A Best-Worst Scaling methodology revealed that Danes prioritize environmental sustainability concerns – namely biodiversity loss, the hindering of the development of other renewable energy sources and the climate change mitigation potential of woody biomass – over societal and/or economic ones when it comes to the promotion of woody biomass. Finally, it was found that concern about climate change, belief in the mitigation potential of woody biomass, and being younger explained the formation of positive attitudes toward woody biomass. Policy makers aiming to take public concerns into account in discussions about Denmark's energy future should focus more on minimizing the negative environmental impacts associated with woody biomass rather than on its economic benefits. [Display omitted] [ABSTRACT FROM AUTHOR]

In order to implement bioeconomy strategy and seek climate change mitigation, the enhancement of bioenergy production and consumption is required. Looking at a bottom-up approach in which a society can choose its renewable energy supplier, it is important to analyze what mechanisms contribute to the willingness to use bioenergy. In this paper, the Lithuania case, when the citizenry got a chance to choose an independent energy supplier, was considered. Applying the structural equation modelling the impact of financial, social and informational mechanisms, knowledge about bioeconomy and about the benefit on the environment and the willingness to use bioenergy was evaluated. The results showed that the financial mechanism and knowledge about bioenergy and the benefit on the environment influenced the willingness to use bioenergy the most. Information mechanism also influenced this intention. Meanwhile, social mechanism had no effect both on knowledge level and intention to use bioenergy. Therefore, this study could contribute to the formation of bioeconomy policy and the enhancement of bioenergy usage in the household sector. [ABSTRACT FROM AUTHOR]

Some of the most influential explorations of low-carbon transformations are conducted with Integrated Assessment Models (IAMs). The recent attempts by the IPCC to look for pathways compatible with the 1.5 °C and 2 °C temperature goals are a case in point. Earlier scholarship indicates that model-based pathways are persuasive in bringing specific possible future alternatives into view and guiding policymaking. However, the process through which these shared imaginations of possible futures come about is not yet well understood. By closely examining the science-policy dynamics around the IPCC SR1.5, we observe a sequence of mutually legitimising interactions between modelling and policy making through which the 1.5 °C goal gradually gained traction in global climate politics. Our findings reveal a practice of 'political calibration', a continuous relational readjustment between modelling and the policy community. This political calibration is indicative of how modellers navigate climate politics to maintain policy relevance. However, this navigation also brings key dilemmas for modellers, between 1) requirements of the policy process and experts' conviction of realism; 2) perceived political sensitivities and widening the range of mitigation options; and 3) circulating crisp storylines and avoiding policy-prescriptiveness. Overall, these findings call into question the political neutrality of IAMs in its current position in the science-policy interface and suggest a future orientation in which modellers aim to develop additional relations with a broader set of publics resulting in more diverse perspectives on plausible and desirable futures. • IAMs legitimised policy commitments to the 1.5 °C goal. • 1.5 °C pathways gained traction through mutually legitimising science-policy dynamics. • Model analysis is calibrated to policy requirements to maintain policy relevance. • Modellers face dilemmas when navigating between policy relevance and policy shaping. [ABSTRACT FROM AUTHOR]

Pakistan's urban air pollution is among the world's worst, wreaking havoc on public health and the economy. Although the country's environmental protection act and the climate change act recognize the dual challenges of air pollution and climate change, it lacks an integrated national strategy to manage both simultaneously. Based on simulations with the GAINS model (an integrated assessment model) through soft coupling with the EnerNEO Pakistan model (an energy-economic model), we assess the benefits of climate policies and air pollution control measures on air quality and public health for Pakistan under the baseline and alternative scenarios. Our results reveal that Pakistan's current air pollution control measures are insufficient to meet the country's air quality standards under the baseline scenario. Implementing sustainable development strategies will reduce nationwide PM 2.5 -related mortalities by 24% in 2050 compared to the baseline. While advanced control measures have the potential to improve air quality and human health in Pakistan, when combined with national sustainable development strategies, they have the potential to halve greenhouse gas emissions (implementing SDG 13 indicator on climate action) and save on emission control costs approximately by a quarter (0.32% of GDP) by 2050. This appears to be a significant co-benefit in terms of air quality (environmental), health (social), and cost (economic), implying that Pakistan's future policymaking should prioritize cost-effective co-control of air pollution and greenhouse gases. [Display omitted] • We studied air quality and health co-benefits under alternative policy scenarios. • Current legislations would result in a 1.5-fold rise in PM 2.5 levels by 2050. • Stringent air pollution control measures would cut PM 2.5 levels in half by 2050. • PM 2.5 mortalities would be decreased by 24% in a sustainable development scenario. • Sustainable development policies would further reduce GHG emissions by 53%. [ABSTRACT FROM AUTHOR]

Sustainable fuels and technologies are expected to significantly contribute towards climate change mitigation considering that the transportation sector provides a 23% share out of the total CO 2 emissions. Biodiesel is a green fuel produced by transesterification of triglycerides with an alcohol in the presence of a catalyst. The current study entails modelling and simulation of biodiesel production, through an acid transesterification process, using both classic and intensified methods, coupled with an environmental impact analysis performed following the Life Cycle Assessment methodology. The traditional biodiesel production consists in the synthesis and separation sections, while the intensified method is based on reactive distillation. ChemCAD software was used to simulate and evaluate the processes from a technical point of view. Methanol is generated using CO 2 and H 2 , this method being considered as a new approach for CO 2 utilization. Water electrolysis is employed for H 2 generation, with either biomass or natural gas as power source. A cradle-to-gate environmental analysis is performed within the current research by means of GaBi software, considering the following system boundaries: i) upstream processes: catalyst supply chain, sunflower oil supply chain, natural gas supply chain, limestone extraction and decomposition, ii) main-processes: methanol and biodiesel production, iii) downstream processes: disposal of wastes. ReCiPe method was chosen as the impact assessment method. High purities for the main product and by-product are obtained (i.e., purities higher than 99%). The outcome of the process simulation points to the conclusion that the intensified path gives better performances from technical point of view. The environmental results show that the classic approach performs better when CO 2 and H 2 are used as raw materials, while reactive distillation displays a higher efficiency when natural gas is used as feedstock. [Display omitted] [ABSTRACT FROM AUTHOR]

• We consider the requirement of taking climate action for authorities in urban mobility planning. • Three alternative small-scale projects that the city planners can develop and implement are used. • Twelve societal dynamics criteria are grouped as technical, environmental, economic, and political. • We propose an improvement of WASPAS by Einstein norms in a fuzzy environment over triangular fuzzy numbers. • The results show that the best plan should be inclusive, equitable and economically efficient. The twin challenges posed by biodiversity loss and climate change compel public authorities to transform their traditional policies to take climate action via urban mobility planning. However, the interests of the stakeholders may differ so that the development and the implementation of the required action become challenging. In this study, we trace how an optimal action plan should take the societal dynamics into account and how the actions taken can reshape the societal dynamics. To illustrate and analyze the complex forces that drive the decision-making process in urban mobility planning, we develop a scenario, which bunches three small-scale urban mobility planning alternatives that are frequently proposed in the literature and practiced in cities. Alternatives are assessed under twelve criteria reflecting economic, environmental, technical, and political dimensions of the decision problem. In solving the problem, we propose an improvement of the Weighted Aggregated Sum Product Assessment (WASPAS) approach by applying Einstein norms in a fuzzy environment over triangular fuzzy numbers to evaluate and rank the prioritization of climate change mitigation strategies. The proposed method comprises two stages. In the first stage, the weight coefficients of the criteria are calculated. In the second stage, the fuzzy Einstein WASPAS approach is applied to select the most suitable alternative among the three alternatives. Testing and validation of the model are done through a comparison with existing decision making methods in the literature. The results show that the best plan should be inclusive and equitable as well as economically efficient. Although the economic dimension is highly significant to the decision-making process, choosing the most suitable urban mobility planning option requires the consideration of other societal dynamics, too. [ABSTRACT FROM AUTHOR]

Soil organic carbon (SOC) is a critical measure for ecosystem health and offers opportunities to understand carbon fluxes and associated implications. However, SOC can be significantly influenced by anthropogenic land use change, with intensive and extensive disturbances resulting in considerable SOC loss. Consequently, understanding the spatial distribution of SOC across different land uses, particularly at national level characterised by different biomes, is vital for integrated land-use planning and climate change mitigation. Remote sensing and deep learning (DL) offer a reliable largescale mapping of SOC by leveraging on their big data provision and powerful analytical prowess, respectively. This study modelled SOC stocks across South Africa's major land uses using Deep Neural Networks (DNN) and Sentinel-3 satellite data. Based on 1936 soil samples and 31 spectral predictors, results show a relatively high accuracy with an R2 and RMSE value of 0.685 and 10.15 t/h (26% of the mean), respectively. From the seven land uses evaluated, grasslands (31.36%) contributed the most to the overall SOC stocks while urban vegetation (0.04%) contributed the least. Moreover, although SOC stock was found to be relatively proportional to land coverage, commercial (46.06 t/h) and natural (44.34 t/h) forests showed a higher carbon sequestration capacity. These findings provide an important guideline to managing SOC stocks in South Africa, useful in climate change mitigation through sustainable land-use practices. Whereas landscape restoration, and other relevant interventions are encouraged to improve SOC storage, care must be taken within land-use decision making to maintain an appropriate balance between carbon sequestration, biodiversity, and general ecosystem functions. [ABSTRACT FROM AUTHOR]

• Just low-carbon transition in food systems needs conceptualisation. • We introduce principles and criteria as a guiding framework for the conceptualisation. • We establish a conceptual framework for clarifying justice in food system low-carbon transition. • The framework is suitable for application in different contexts. • The principles of the framework suit conceptualizing justice in any transition sector. In this article, we propose a framework of principles and criteria for just transitions in food systems. Climate mitigation activities are urgently needed in food systems, but can have damaging social, environmental, economic, and health impacts. Consequently, food system transitions can cause significant side effects across and beyond food systems, aggravating existing inequalities and unsustainabilities, causing new ones, or hampering equal engagement in the transition itself. Thus, justice questions stand at the core of assessing decarbonization pathways and policies and must link to other sectors as well: Who bears the costs and who enjoys the benefits of the transitions? Can transitions be inclusive, leaving no one behind? We examine the establishment and purpose of general principles and food system-specific criteria for just transition, present the framework – standards for judging, evaluating, and deliberating justice in food system transitions – and reflect upon the uses of the framework and future developments. [ABSTRACT FROM AUTHOR]

Nature-based Solutions (NbS) are increasingly proposed in international environmental governance settings to address the interlinked crises of climate change, biodiversity loss, and growing inequality. Thus far, scholarly research on NbS has been largely conceptual, and empirical research from the social sciences is widely absent, as are insights into the narratives that surround them. Using the 2019 United Nations Climate Action Summit and the 2019 United Nations Climate Change Conference (COP 25) as a case study, we set out to analyze the range of narratives associated with proposals for (and against) NbS. We used a discourse coalition approach, drawing data from a systematic document analysis of public-facing texts from a range of actors, and expert interviews. Results reveal two central and opposing NbS narratives: 1) Leveraging the power of nature —NbS are multifunctional, powerful, and must play a critical role in addressing global challenges, especially climate change (held by NbS proponents): and 2) Dangerous distraction —NbS are being co-opted to continue with what is seen as the unsustainable, unjust, status-quo (held by NbS critics). Both narratives make use of the ambiguity of NbS, though in contrasting ways, and their respective coalitions reflect and reproduce existing fault-lines in international environmental governance. Our findings indicate that, despite its promise, 'NbS' is currently unable to foster inclusive participation and support transformative change. • Two central and opposing narratives characterize Nature-based Solutions (NbS) discourses. • Proponents position NbS as key to addressing climate change and bridging siloes. • Critics warn that NbS are being co-opted to maintain the status-quo. • Ambiguity is leveraged implicitly and explicitly across NbS narratives. • NbS narratives reflect and reproduce longstanding power asymmetries. [ABSTRACT FROM AUTHOR]

Changing environmental data analytics modify perceptions and policies on resources, particularly in terms on mining legitimisations. Enhanced data products are critical for improved planning and execution of extractive activities. Improved data in the mining industry tends to increase definitions and scale levels thus segregating environmental features from each other. This tends to be in conflict with local contingent appreciations of resources and their interactions with broader environmental features and conditions. Data scales and availabilities influence which resource perception dominates and so how mining is justified or antagonised successfully. This paper contributes to discussions that explore resource materialities from analyses of lithium mining. It focuses on the Atacama Salt Flat in contexts of lithium mining and material metrics, and separates itself from focuses on global availability of reserves by taking a narrower discussion on chemical differences that contour abundancy, variety and rarity of materials. This paper is based on fieldwork conducted in 2019 in Chile. It presents the current state of social appreciations on lithium materialities in and around places of extraction in Chile. Centrally, it unpacks an analysis of the social values of lithium and sets grounds for thinking about how a social value of a material becomes prevalent over other social values, particularly in contexts of global material needs and local environmental change for climate change mitigation solutions. • Affordances of data products on the Atacama Salt Flat sustain social values that favour lithium extraction. • Legitimisations to extract materials in the global south benefit from data products that increase metrics and categories of materials. • Contestations to lithium mining in San Pedro de Atacama use dominant discourses that better sustain extraction. • Environmental policy-making need to scrutinise data products from the outset of social values. • Data-driven responsible material sourcing should integrate social value assessments • There is no clear-cut definition of social value respective to the environment and progress on its understanding is context and place specific. [ABSTRACT FROM AUTHOR]

Small Island Developing States (SIDS) face complex socio-economic and environmental threats, making them particularly vulnerable to climate change. Blue Carbon (BC) ecosystems (mangrove forests, tidal marshes, and seagrass meadows) provide climate regulation services by sequestering and storing carbon, presenting an opportunity for SIDS to address climate change and implement Paris Agreement commitments in their Covid-19 recovery. BC habitat decline not only reduces carbon sequestration benefits provided, but can also result in sediment disturbance and the release of previously stored carbon back into the atmosphere. In this work, a scenario analysis informed by a stakeholder workshop and scientific and socio-economic expectations is used to assess the economic importance of Grenada's BC (mangroves and seagrasses) over the next 10, 25 and 50 years. Our findings indicate that sequestration benefits are severely diminished under Business-as-Usual habitat loss, but still marginally outweigh losses from carbon emissions, with overall welfare gains of US$0.5–1.9 million over 50 years. To stimulate economic recovery post-pandemic, stakeholders anticipated a realistic scenario of increased habitat decline resulting in overall losses of US$5.4–19.4 million in the next 50 years. However, if ecosystems are maintained, overall carbon benefits could reach US$10.7 million, while a 20% increase in mangroves over the next 25 years provides benefits reaching US$11.1 million between 2020 and 2070. These results demonstrate a significant increase in value when BC ecosystems are maintained and not disturbed, preventing the release of previously stored carbon and enhancing sequestration capacity. Restoration benefits are marginal, compared to conservation, supporting claims that conservation is more cost effective. • A scenario analysis is used to value Grenada's BC climate mitigation service. • Maintaining BC extents retains sequestration worth up to $10.7million over 50 years. • BAU habitat loss lowers sequestration and releases stored carbon, reducing benefits. • More severe habitat declines result in welfare losses up to US$19.4million by 2070. • Integrating BC into SIDS' Paris Agreement commitments can enrich climate mitigation. [ABSTRACT FROM AUTHOR]

The Paris Agreement and the 2030 Agenda for Sustainable Development embody highly intertwined targets to act for climate in conjunction with sustainable development. This, however, entails different meanings and challenges across the world. Kenya, in particular, needs to address serious sustainability threats, like poverty and lack of modern and affordable energy access. This study uses a multi-criteria group decision aid and consensus measuring framework, to integrate both agendas, and engages with Kenyan stakeholders to help inform future mitigation research and policy in the country. Results showed that stakeholders highlight topics largely underrepresented in model-based mitigation analysis, such as biodiversity preservation and demand-side transformations, while pointing to gaps in cross-sectoral policies in relation to access to modern energy, agriculture, life on land, and climate change mitigation. With numerous past and recent policies aiming at these issues, persistent stakeholder concerns over these topics hint at limited success. Sectoral and technological priorities only recently emphasised in Kenyan policy efforts are also correlated with stakeholders' concerns, highlighting that progress is not only a matter of legislation, but also of coordination, consistency of targets, and comprehensibility. Higher bias is found among the preferences of stakeholders coming from the country's private sector. Results from this exercise can inform national policymakers on effectively reshaping the future direction of the country, as well as modelling efforts aimed at underpinning Kenya's energy, climate and sustainable development policy. • We propose a climate & sustainability co-governance multi-criteria decision framework. • Stakeholder preferences are assessed based on 2-tuple TOPSIS and consensus measuring. • Biodiversity, AFOLU, and demand-side residential transformations among key priorities • Recent policy aimed at these issues but stakeholder concerns hint at limited success. • Our exercise also unveils higher bias among private-sector stakeholders' preferences. [ABSTRACT FROM AUTHOR]

Indonesia, Southeast Asia's largest economy, ranks globally among the top countries in terms of the envisioned expansion of coal-fired power plants. Despite strongly falling costs for key renewable energies in recent decades, most outstandingly solar PV and wind power, their role in Indonesia's power sector planning is negligible. To assess the potential role of renewable energies in Indonesia's power sector, we develop a cost optimization power sector model. Based on four different scenarios assuming a comparatively slow and a comparatively rapid decrease in the costs for renewable energies, each with and without carbon pricing, we assess capacity expansion, electricity generation, resulting CO 2 emissions, and total system costs until 2040. We compare our results to Indonesia's utility latest power expansion business plans RUPTL, as well as to the country's energy master plan RUEN. We find that official power sector development plans would lead to comparably higher electricity generation costs, due to overcapacity and negligence of future least-cost technologies, especially solar PV. Carbon pricing as low as 5 USD per ton of CO 2 would make coal an economically unviable alternative and foster the integration of biomass and geothermal power plants. In the context of rapidly decreasing costs for renewables, solar PV would be cost competitive with coal even in the absence of carbon pricing by the middle of the 2020–2030 decade. Wind power remains largely uncompetitive across the whole time horizon, due to the lack of substantial wind resources. Our results highlight that Indonesia's power sector planning could be substantially improved, from both a cost and a climate protection perspective. • We develop a cost optimization power sector model and examine the cost-optimal power sector composition until 2040 in the context of moderate and strongly falling costs for RE technologies, with and without carbon pricing. • Indonesia's power sector development could reconcile climate mitigation with reducing the overall costs of electricity. • Three elements are key to reduce electricity costs and CO2 emissions: i) avoiding the installation of unnecessary power plants ii) introducing carbon pricing, and iii) politically fostering cost reductions for RE. • Some main objectives behind the continued use of coal-fired power plants, i.e. keeping electricity prices low and collecting public revenue from coal royalties, could still be achieved by using low-carbon technologies and introducing carbon pricing [ABSTRACT FROM AUTHOR]

The increasing building energy consumption in China has been acknowledged as a key concern in future climate mitigation and sustainable development. Though reliable accounting of energy consumption is the prerequisite, estimates of China's building energy consumption remain subject to large discrepancies. One of the primary causes of these disparities is an inaccurate estimation of building energy intensities due to flaws in estimation methods and data. Here, we present a bottom-up approach and use large-scale nationwide building energy survey data (covering 30 provinces, four different types of buildings, and district heating from 2009 to 2016) to correct the existing, widely used assumption of normal distribution for building energy intensity and provide a more accurate estimate of building energy consumption in China. Our improved estimate of China's building energy consumption differs by −10% to 36% from existing mainstream estimates, indicating a significant bias in existing research and applications. • The non-normal probability distribution of building energy intensity is identified. • A bottom-up approach for the accurate estimate of building energy use is developed. • The re-quantified building energy use differs by −10% ~ 36% from the main estimates. • The features of building energy consumption in China were explored. [ABSTRACT FROM AUTHOR]

The high dependence on imported fuels and the potential for both climate change mitigation and economic diversification make Barbados' energy system particularly interesting for detailed transformation analysis. An open source energy system model is presented here for the analysis of a future Barbadian energy system. The model was applied in a scenario analysis, using a greenfield approach, to investigate cost-optimal and 100% renewable energy system configurations. Within the scenarios, the electrification of private passenger vehicles and cruise ships through shore-to-ship power supply was modelled to assess its impact on the energy system and the necessary investment in storage. Results show that for most scenarios of a system in 2030, a renewable energy share of over 80% is achieved in cost-optimal cases, even with a growing demand. The system's levelised costs of electricity range from 0.17 to 0.36 BBD/kWh in the cost-optimal scenarios and increase only moderately for 100% renewable systems. Under the reasonable assumption of decreasing photovoltaic investment costs, system costs of a 100% system may be lower than the current costs. The results show that pumped hydro-storage is a no-regret option for the Barbadian power system design. Overall, the results highlight the great potential of renewable energy as well as the technical and economic feasibility of a 100% renewable energy system for Barbados. • Open Source Energy Modelling for Barbados with high shares of renewable energies • Modelling includes electric vehicles and shore-to-ship cruise ship energy supply. • High shares above 80% of renewable energies are cost optimal. • Pumped Hydro Storage is identified as a no-regret option. • Restricted flexibility potential is a challenge for a 100% renewable system. [ABSTRACT FROM AUTHOR]

Herein, the aim was to develop an in-depth understanding of the kinetic behaviour of olive tree pruning residue (OTPR), an abundant agricultural waste, during pyrolysis. Thermal analysis at 1, 2, 4, 6 and 10 °C.min-' was performed using TGA-thermogravimetric analysis, with the results subsequently used to determine the OTPR's kinetic thermal breakdown behaviour. Furthermore, advanced kinetics and technology solutions (AKTS) thermo-kinetic tool was applied to investigate the kinetic behaviour of OTPR and to generate kinetic predictions for various heating configurations. Friedman's method was the main approach used to evaluate the kinetic parameters. For comparison, other established kinetic modelling techniques, such as ASTM-E698 and Flynn-Wall-Ozawa (FWO) methods, were applied. The ASTM-E698 approach yielded an apparent activation energy (Ea) of 172.09 kj.mor1, whereas the FWO method yielded an Ea range from 38 to 172 kj.mor1. Finally, the differential iso-conversional approach yielded Ea values ranging between 85 and 191 kj.mor1. Kinetic predictions were then developed for isothermal, non-isothermal, and stepwise configurations using the kinetic parameters obtained via Friedman's model. The forecasts shed light on optimising production throughput in a variety of reactor configurations. [ABSTRACT FROM AUTHOR]

Although states continue to work together under the UNFCCC, it is increasingly apparent that not enough is being done, and that a just response to climate change is not being pursued. This paper asks whether non-state actors, such as cities, corporations, and non-governmental organisations might, by contrast, offer hope for such a response to emerge. Using the city of Bristol as an empirical case study, the paper puts forward that non-state actors can not only lower emissions and/or contribute to adaptation efforts, but more importantly have the potential to significantly shift the context of climate change action and create space for systemic change. They therefore offer room for cautious optimism. • Cosmopolitan climate justice centred analysis of non-state actors. • Non-state actors offer hope for a just response to climate change. • Non-state actors can push for systemic change in climate change policy. • City of Bristol, UK, used as an empirical case study. [ABSTRACT FROM AUTHOR]

Climate change has impacted development progress and increased global inequality. Therefore, all emitters, both developed and developing countries, must implement climate change mitigation and adaptation actions. Indonesia is one of the developing countries that signed the Paris Agreement. In its NDC document, Indonesia has pledged to reduce greenhouse gases emission by 29% using domestic resources (unconditional) and 41% with international support (conditional) from the business as usual (BAU) scenario by 2030. This commitment gives Indonesia the right to take advantage of various types of support, including ICF opportunities offered by the ADB through the non-UNFCCC financial scheme and the Global Green Growth Institute through the UNFCCC financial mechanism. This paper explores to what extent ICF supports the achievement of Indonesia's Nationally Determined Contribution (NDC) target. The study uses qualitative analysis to provide a general overview of ICF in Indonesia, its climate finance strategies, and the case study of the energy sector. The study finds that ICF in Indonesia continues to develop, albeit with many limitations. Several ICF channels could be utilized more optimally such as, loan and grant instruments. Indonesia cannot rely solely on international support to meet its enormous climate finance needs; it must develop innovative financing through various instruments, such as green sukuk. ICF also plays a role in facilitating the energy transition from coal-based to renewable energy sources and increasing energy efficiency. • Climate change has impacted development progress and increased global inequality; therefore, all emitters, both developed and developing countries, need climate change mitigation and adaptation efforts. • Several ICF channels can be utilized more optimally, both on loan and grant instruments. • To meet climate finance needs, developing countries (e.g Indonesia) cannot rely solely on international support, and it is necessary to develop innovative financing through various instruments. • ICF also plays a role in encouraging a transformation in terms of energy use from coal-based energy sources to renewable and more efficient energy. [ABSTRACT FROM AUTHOR]

This study aims to unveil the heterogeneous impacts of import product diversification and institutional factors for achieving energy efficiency in Organization for Economic Co-operation and Development (OECD) countries. In doing so, the study employs robust econometric techniques such as Fully modified ordinary least squares (FMOLS) co-integration, pooled Ordinary Least Squares (OLS), Feasible Generalized Least Squares (FGLS), pool mean group regressions, fixed effects, and random effects for panel data from 1990 to 2015 for selected OECD countries. The detailed empirical outcomes suggest that import product diversification is conducive to reducing the energy and carbon intensity (improvement in energy efficiency) in OECD countries. The empirical conclusions provide various guidelines to achieve cleaner and greener growth and align with various Sustainable Development Goals (SDG 7: Affordable and clean energy, SDG 9: Industry, innovation, and infrastructure, and SDG 13: Climate action) of OECD countries. The paper elaborates fruitful policy suggestions regarding the diversification of imports and energy use-carbon emission-nexus for the OECD member nations. Based on the findings, policymakers and environmental scientists should strengthen the trade-energy and import portfolio policies to attain energy efficiency. [ABSTRACT FROM AUTHOR]

COVID-19 is a severe acute respiratory syndrome caused by the novel coronavirus SARS-CoV-2. The COVID-19 pandemic lockdowns and quarantines have led to significant industrial slowdowns among the world's major emitters of air pollutants, with resulting decreases to air pollution and greenhouse gas emissions in nations such as China, India and US, deemed to be major sources of global CO 2 emissions, as well. However, there are major concerns that these decreases in atmospheric pollution can be hampered as economies are reactivated. Historically, countries have weakened environmental legislations following economic slowdown to encourage renewed economic growth. Such a policy response now will likely have disproportionate impacts on global Indigenous people and marginalized groups within countries, who have already faced disproportionate impacts from COVID-19 and environmental pollution. Our "new normal" remain nimble enough to allow us to fine-tune our interventions, research tools and solutions-oriented research to quickly enough to stay ahead of the pandemic trajectory in the face of air pollution and climate change. Societal and behavioral changes to reduce these anthropogenic cumulative stressors should be advocated, while prioritizing the public health of marginalized groups around the world, promoting new approaches to champion environmental health along with educational programs addressed to the population. Bold government decisions can restart economies while pre-empting future inequities and committing to environmental protection in an era of COVID-19 and global change. [ABSTRACT FROM AUTHOR]

The rapid growth of industrial production signifies its CO 2 footprint and climate impact, highlighting the demand for efficient and energy-saving production scheduling. Generally, a single production job comprises multiple operations on various machines. Existing studies estimate job energy consumption from a broader perspective, often disregarding the detailed scheduling of operations. This simplification may result in inaccurate evaluations of energy consumption and savings, as energy consumption can differ significantly among operations, with each requiring specific levels of energy on various machines. Proposing a new scheduling framework to replace the classical strategy is challenging yet necessary due to these variations. This study aims to investigate the multiobjective flexible job-shop scheduling problem by considering operation-dependent energy consumption and to improve the accuracy and thoroughness of the energy-consumption evaluation framework. First, a core metamodel for energy assessment is established and a mathematical model is introduced to minimize the manufacturing span and total energy consumption. Subsequently, a dynamic diffusion weight adjustment for a multiobjective evolutionary algorithm based on decomposition (MOEA/D-DDWA) is proposed. Operation-dependent energy consumption and processing quality are discussed, and a superior unified energy-saving strategy is designed to facilitate the selection of the processing-speed range, balancing energy consumption and saving. Finally, numerical experiments are conducted based on datasets of various scales, demonstrating that the core metamodel for energy assessment can achieve significant energy savings. Compared with other classical multiobjective optimization algorithms, the MOEA/D-DDWA is more energy efficient. [ABSTRACT FROM AUTHOR]

Addressing the escalating impacts of climate change, this study explores the potential of CO 2 storage in submarine sediments, presenting a promising strategy for sustainable global warming mitigation. We examine the dynamics and stability of CO 2 hydrate caps using magnetic resonance imaging to investigate their spatial-temporal distribution under varying flowrates and storage pressures. Our findings indicate that hydrate caps predominantly expand along the flow direction, influenced significantly by the state of CO 2 (liquid or gas) and operational parameters (storage pressure and CO 2 flowrate). Notably, higher flowrates and pressures expedite hydrate formation, thereby mitigating the risks of injection well blockages and enhancing cap stability. However, excessively rapid formation may compromise cap thickness and effectiveness. The study delineates optimal conditions that sustain hydrate cap integrity, advocating for a minimum safety pressure of 9000 kPa to prevent failure. These insights significantly advance the development of efficient CO 2 storage strategies in submarine environments, offering vital guidance for policy and industry practices aimed at achieving carbon neutrality. By highlighting the technological challenges and solutions associated with deep-sea CO 2 storage, this research contributes to the broader discourse on innovative approaches to climate change mitigation. [Display omitted] • Dynamic formation charactistics and stability of CO 2 hydrate storage cap is revealed. • Hydrate caps mainly expand along the flow direction and shows a spatial dependence. • Higher flowrates and pressures expedite hydrate formation and enhance cap stability. • A minimum safety pressure of 9000 kPa is delineated to sustain hydrate cap integrity. [ABSTRACT FROM AUTHOR]

Climate protection goals and the transformation of the mobility sector are pushing the shipping industry to develop new propulsion systems emitting fewer or no greenhouse gases. One promising approach to eliminate greenhouse gas emissions from ships is a hybrid propulsion system powered by fuel cells and batteries. A high-temperature solid oxide fuel cell (SOFC) can supply heat and the electrical power demand in combination with a battery. Due to the low dynamic performance of the SOFC when faced with sudden load changes, a battery is responsible for providing the power for the dynamic load components. To ensure the resource-efficient operation of the propulsion components, intelligent energy management methods are required for power distribution control. Implementing a machine-learning-based energy management method based on twin-delayed deep deterministic policy gradient (TD3) improves the overall system efficiency, lifetime, and fuel economy compared to conventional energy management methods. To verify the technical feasibility of the propulsion system including its controls, the system is tested in a hardware-in-the-loop (HIL) environment. By implementing the TD3-based algorithm within the energy management used on the test bench, hydrogen consumption was reduced by approximately 10% and the remaining battery capacity after five years was 6% higher in comparison to conventional energy management methods. [Display omitted] • Hybrid electric propulsion system for a marine application. • Development of machine-learning-based energy management algorithms. • Validation measurements with propulsion components. • Assessment of the economic performance for a large cruise ship application. [ABSTRACT FROM AUTHOR]