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Green Infrastructure (GI) has gained recognition for its notable role in climate change mitigation and urban resilience. Meanwhile, there is a growing body of literature revealing the uneven distribution of GI from environmental justice perspective. Given the role of GI, the distribution should also be explored in a social vulnerability context and combining green and gray infrastructure. However, the distribution of GI, sewer pipelines, and their relationship with social vulnerability remain underexplored. This study fills this gap by assessing stormwater infrastructure in Washington, D.C., against a backdrop of historical discriminatory sewage practices. It investigates whether disparities exist in the distribution of sewer pipelines and green infrastructure among communities with differing social vulnerabilities, using a comprehensive approach that encompasses GI, underground pipelines, and social vulnerability. The analysis reveals significant insights into the relationships between stormwater infrastructure, social vulnerability, and urbanization, offering valuable implications for stormwater management planning. This research contributes to the field of environmental justice and urban planning by shedding light on the complex interplay between infrastructure allocation, community vulnerability, and the urgent need for equitable infrastructure management, especially stormwater and sewer systems, in the face of climate-related challenges. • The capacity of Washington, D.C.'s sewer system has not kept pace with the rapid urban development. • Statistically significant link between social vulnerability and stormwater infrastructure. • GI distribution in DC is misaligned with highest-need areas, worsening inequality with limited pipeline capacity. • Planning efforts need to address stormwater infrastructure disparities in DC. [ABSTRACT FROM AUTHOR]

Urban forests are gaining recognition as a nature-based solution to climate change and other social-environmental issues in cities. Yet, the integration of urban forests may conflict with other climate measures such as urban densification, which may create hostile growing conditions for trees and lead to tree decline or loss. While previous studies have identified conflicts between densification and urban forests, there is a lack of research mapping the relationships among climate action, urban planning, and urban forest policies. This study involved semi-structured interviews with 14 key informants in Metro Vancouver, Canada, a rapidly-densifying region. Twenty-six trade-offs and 24 synergies were identified in five areas/sectors, such as (re)development and infrastructure. While strategic policies often highlighted synergies, policy implementation processes and outcomes often encountered trade-offs due to factors such as limited budgets and low political priority. Notably, most trade-offs and synergies were found in the same areas - (re)development and infrastructure - and shared the same contributing factors, such as political priority of urban forestry, suggesting areas of opportunity to transform trade-offs into synergies through appropriate planning and monitoring. The study also highlighted the need for further research on the interactions and impacts among municipal policies for more effective implementation and outcomes. • The study is among the first attempts to explore policy interactions on climate action, urban planning, and urban forest. • Semi-structured interviews were conducted with key informants with relevant expertise in cities of Metro Vancouver, Canada. • Results revealed key trade-offs and synergies among policies and practices, especially in development and infrastructure. • Connections between trade-offs and synergies suggest opportunities for compact, climate-proofed, and green cities. [ABSTRACT FROM AUTHOR]

In recent months, 15-min city policies have faced significant backlash across social media, in opinion pieces, and even through street demonstrations, casting doubt on the future of x-minute city policies as effective tools in the fight against climate change. The protests and backlash not only challenge the effective implementation of x-minute city policies, but also highlight our lack of understanding regarding which acceptability factors affect public reactance to this new kind of urban policy. This paper reviews the existing literature to reveal the four main factors shaping policy acceptability. It then juxtaposes these factors against the common criticisms leveled at the 15-min city model. This comparative analysis not only illuminates the limitations of applying traditional policy frameworks to the x-minute city context, but also identifies critical gaps in the existing literature. By bridging this divide, we aid policymakers in navigating the spectrum of public skepticism of the 15-min city model, from addressing and debunking conspiracy theories to engaging with scientifically-grounded critiques. Our findings offer a roadmap for transforming these innovative urban planning concepts into widely embraced solutions for climate change mitigation. • We identify key factors shaping 15-min city policy acceptability. • Analyzes the role of conspiracy theories in public resistance • Emphasizes participatory co-design to enhance fairness and acceptance • Advocates for flexible, localized 15-min city policy implementation • Calls for future research on environmental justice and gentrification concerns [ABSTRACT FROM AUTHOR]

Effectively addressing climate change in line with the Paris Agreement and the EU Climate Law requires the establishment of governance structures with the participation and coordination of all levels of government and where the local level plays a key role. This is evident with the emergence of city-to-city networks of urban policymakers and supporting initiatives such as the EU 100 Climate-Neutral and Smart Cities Mission. The purpose of this article is to demonstrate how approximately 400 European cities are shaping their governance structures to tackle the complexities of achieving climate neutrality, highlighting the key elements on which cities focus their efforts. This study analyses data collected through the Expression of Interest survey of the European Commission's 100 Climate-Neutral and Smart Cities Mission, which contains inputs directly provided by local authorities responsible for implementing climate policies. The results reveal the significant progress cities have made in adapting their governance approaches to effectively address climate challenges through for instance the institutionalisation of climate change, and the introduction of enabling and participative forms of governing with the involvement of key stakeholders in the decision-making processes. It also highlights the challenges cities face concerning climate financing and the need to unlock private investments. • Network analysis of European cities' legal powers in climate-related sectors • Urban climate governance models necessitate continuous adjustments. • European cities face challenges when financing climate actions. • Stakeholders' collaboration is essential for urban climate transitions. [ABSTRACT FROM AUTHOR]

While cities have been widely considered to be key sites of ambitious and transformative climate action, it is time to question whether they have adequate tools and mandates to reach their goals in time. In this paper we provide a comprehensive assessment of planned measures in major cities, assessing the distribution of persuasive (soft) versus direct regulatory (hard) and material measures using an urban systems perspective. Examining 1079 climate measures of 19 cities in the global C40 network we find that the majority of measures can be considered as soft measures , focused on raising awareness, incentivising businesses, engaging citizens, and developing new plans. Our cases suggest that cities in the Global South are more focused on hard and material measures and less prone to voluntarism than cities in the Global North. Generally, showing that strategies for sustainability transformations in cities are heavily reliant on voluntarism and persuasion, the article expresses concern for the ability of cities to meet its ambitious targets. The research literature on urban climate governance should expand from its current focus on collaborative, network-based and experimental governance, to reconsider the roles of regulation and control in meeting climate targets. • Provides a comprehensive assessment of planned climate measures in 19 major cities • Analyses 1079 climate measures and categorises into soft, hard and material modes • We find that the majority of measures (more than half) can be considered as soft. • We critically discuss the viability of ambitious climate targets. [ABSTRACT FROM AUTHOR]

There is growing pressure for cities to plan for and take action on climate change in equitable and just ways. Scholars, however, continue to debate what justice looks like in practice, and cities struggle to plan for and implement climate justice. This article investigates the case of San Francisco, a forerunner in climate action and a city experiencing profound inequality. Our research employs an analytical framework that assesses how and to what extent climate justice is incorporated into climate adaptation planning. This study analyzes 20 years of adaptation efforts in San Francisco and is informed by interviews with city planners and agency staff. Our research has found that San Francisco's approach to climate planning has shifted in recent years from focusing primarily on technology and science to addressing concerns of justice and the needs of residents. While San Francisco has made efforts to develop climate justice plans, further inquiry is needed to study the challenges of fully integrating climate justice into implementation. The insights gained from this case of San Francisco and our analytical framework can inform future urban climate action plans and further the debate around climate justice in cities from the Global North. • Cities, such as San Francisco (United States), are increasingly incorporating climate justice into adaptation planning. • Local government leadership, funding, and regulation lay the groundwork for climate justice in adaptation planning. • We present a framework to examine how and the extent to which climate justice is incorporated into adaptation planning. [ABSTRACT FROM AUTHOR]

Climate Action Planning is one of the top priorities of cities in order to reduce greenhouse gas emissions and strengthening climate-resilience, as pointed out by the New Urban Agenda and the Paris Agreement. This study aims at assessing the development of climate change mitigation and adaptation planning in Italian cities. To this end, we analysed the availability of Local Climate Plans (LCPs) in 76 cities, which are included in the Eurostat Urban Audit (UA-2015) database. In a further step, we analysed the content of the urban climate change mitigation and adaptation plans available in a smaller sample of 32 Italian cities of 2007 Eurostat Urban Audit database (UA-3), looking at the single actions undertaken for addressing mitigation and adaptation to climate change. Results show the almost total absence of comprehensive and stand-alone urban climate change adaptation plans in Italy (except for two cities, Ancona and Bologna), whereas we found that in 61 out of 76 cities municipal civil protection plans are the instruments that deal with local emergencies associated to extreme weather events. On the other hand, 56 out of 76 urban climate change mitigation plans (i.e. Sustainable Energy Action Plans) are being developed in the framework of the Covenant of Mayors, which is a transnational network of local governments created by the European Union (EU) in 2012. The results obtained on the mitigation side point out that, in absence of a national law that imposes Italian cities to develop LCPs, transnational networks are an effective boost to voluntary commitment to reach EU climate and energy objectives. • The research shows a positive trend on urban climate change action in Italy. • Italian cities are more focused on mitigation than to adaptation. • Transnational networks have a crucial role in boosting climate planning in cities. • Cities need to adopt a more holistic approach in dealing with climate change. • More technical and financial resources are necessary to boost local climate actions. [ABSTRACT FROM AUTHOR]

Affecting future urban energy demand will play a significant role in mitigating climate emissions. While the literature has amply focused on the outputs of successful urban climate governance, there has been less focus on the organisational challenge that affecting energy demand will represent. By foregrounding the work practices of civil servants engaging with these issues, this study offers new insights into the possibilities and constraints of affecting energy demand. Inspired by work on social practice theory applied to organisations, it maps the tools, materialities and identity-related dynamics that affect civil servants' work. Empirically, the paper builds on interviews, document analysis and field notes taken in ten Nordic cities. The paper finds that the local agency for governing urban demand is contingent on navigating three tensions: (1) broadening the benefits of climate measures beyond carbon emissions, (2) challenging often politically attractive technologies, and the associated range of actors seen as relevant and (3) clarifying the role and responsibility of municipalities in relation to intervening in citizen's energy demand. By identifying the organisational tensions that civil servants face, the paper helps to understand the challenges encountered in advancing a local climate agenda, and the novel forms of agency that organisations can mobilise. • Taking a social practice lens, this paper studies the tensions met by civil servants in realising demand-side interventions across 10 cities • It reveals three tensions across the tools, materialities and identity-related dynamics that affect civil servants' work. • Amplifying local climate action will require the navigation of these three tensions in the work of civil servants • Ongoing demand reduction will require a widening out in terms of reflexivity, collaboration and political feasibility. [ABSTRACT FROM AUTHOR]

Winter Storm Uri hit Texas in February 2021, leaving millions of people without power. This winter storm and energy crisis provide an example of failed climate planning but present an opportunity to understand response and resiliency during climate change-related events in Texas. Comparing the impacts experienced by the public to communications of elected officials and utility providers could help us understand whether their responses were sufficient enough to address the needs of the communities during the disaster. We performed text content analyses on Twitter data collected from San Antonio's elected officials, utility providers, and the public during the pre- and post-disaster periods. The results demonstrate three major outcomes: 1) elected officials' Twitter activities spiked during the storm which focused on warnings, resources, and situation updates but not so much on recovery, 2) while the public discussed the storm concerning climate change, climate change was largely missing from the elected officials' and utility providers' tweets, and lastly 3) communications did not lead to sufficient action to prepare for future climate change-related crises. • NLP analysis can be useful to analyze Twitter communications during disasters. • Officials' Twitter activity spiked during the storm but lacked a focus on recovery. • The public had a stronger perception of how the storm linked to climate change. • Climate change was missing from elected officials' and energy providers' tweets. • Communications were not translated into action for climate change preparedness. [ABSTRACT FROM AUTHOR]

It is central for climate policy to understand, monitor and forecast greenhouse gas (GHG) emissions, generating insights on the key factors and actions with a greater impact to mitigate and adapt to global warming. Focusing on the leading role of cities, it is relevant to build robust and reliable GHG emissions prospects for every city committing to mitigate and adapt to climate change. In this paper, a novel methodology is proposed to build those prospects, presenting a case study with 6231 EU-27 cities and local municipalities taken from the Global Covenant of Mayors (GCoM). Key GHG emissions predictors for the target years of 2020 and 2030 refer to the baseline energy consumption and associated GHG emissions, as well as the population and the national emissions per capita trend. Additionally, other informative predictors are the baseline inventory year, the reduction target, the disaggregated baseline emissions by type of fuel (fossils or renewables), the heating and cooling degree days and the NUTS urban/rural categorization. The proposed methodology allows assessing the cities' achievements based on their expected performance, and it could be further implemented to support new cities willing to commit to a significant reduction of their GHG emissions. • A robust methodology is proposed to predict GHG emissions for cities committing to climate change mitigation and adaptation. • Key predictors refer to local, regional and national sources of information. • A case study is performed with 6231 European cities: 2030 commitments are expected to achieve a 40 % GHG emissions reduction. • The models described in this paper provide useful information to urban policy makers in the climate action planning process. • The results are replicable in the context of transnational initiatives involving cities in the fight against climate change. [ABSTRACT FROM AUTHOR]

More cities have started trajectories to become climate neutral, especially for their territorial emissions. However, while cities are also targeting consumption-based emissions, whether their plans are sufficient to become climate neutral from both a territorial and a consumption-based perspective remains unclear. We designed a conceptual framework based on a literature review of urban climate mitigation and reviewed mitigation–related documents from nine Swedish cities. We found a strong political will and solid targets but gaps in the plans and actions mostly related to transport, construction and food. Municipal governments use "soft" policy instruments to meet climate targets; at times, economic instruments contradict the vision. Our evaluation indicates a disconnect between intent and outcomes. More regulatory instruments must be deployed to become climate-neutral, and economic incentives must be aligned with the vision. Understanding how climate mitigation strategies affect resources within the city will be necessary to ensure the acceptance and uptake of climate action plans. Collaboration with superordinate governments, within and outside national borders, will be essential to align on policy and policy instruments. What is known? • Cities play a pivotal role in reducing emissions and achieving climate neutrality, yet in our sample of nine Swedish cities, territorial and consumption-based emissions have decreased little since 2014. What are the new findings? • Our review of the cities' environmental plans against our conceptual framework shows high political commitment to achieving climate neutrality. Still, it reveals gaps in strategies and actions, especially for transport and household consumption. Economic instruments are not always in line with reducing climate emissions. • Furthermore, collaborating with superordinate governments is essential to achieving targets, but this is insufficiently addressed within the municipal governments' plans. What do the new findings imply? • Regulatory instruments will be required to support "modal shifts" in behaviour and meet consumption-based climate targets. Understanding the financial consequences of climate mitigation strategies will also be essential to assess the feasibility and societal acceptance of these strategies at a city level. [ABSTRACT FROM AUTHOR]

This work explores the ways in which COVID-19 has affected the discourse on public tourism planning in Copenhagen and how policies meet the challenges of the climate crisis. Inspired by the concept of 'governmobility', we explore changes in discourse on how urban tourism policies aim to ease and control access, mobility, and circulation. The implementation of the DMO Wonderful Copenhagen's 'localhood' strategy has tried to cope with issues of over-tourism by engaging locals who also have access to the attractions and experiences offered to tourists. Meanwhile, the planned growth in international tourism, despite the COVID-19 lockdowns, has not been dismantled but rather reaffirmed. This includes plans for major extensions of Copenhagen Airport. Development corporations in tourism and urban development thus try to reconcile sustainable development with economic growth, which is apparent in the 2022 'Comeback Copenhagen' and 'Planet Copenhagen' strategies. Copenhagen aims to become the most sustainable tourist destination, without taking into consideration that the main greenhouse gas emissions come from the ways tourists travel to and from the destination. • Copenhagen's strategy addressing over-tourism does not target the climate emergency. • In urban tourism development, locals must gain advantages from tourist attractions. • Copenhagen's post-pandemic strategy reaffirms pre-pandemic tourism growth strategies. • Tourism growth policies are supported by entrepreneurial development corporations. • Climate change mitigation in tourism seems impossible but remains the only realistic option. [ABSTRACT FROM AUTHOR]

Many North American cities are pursuing tree planting as part of their climate mitigation policies. Tree planting initiatives (TPI) are decentralized environmental programs since ongoing stewardship is dependent on the individuals who adopt and plant the trees. Therefore, the successful implementation of tree planting is subject to the vagaries of individual landowner actions and decision-making. There is a lack of research on the opportunities for environmental policy and governance that explicitly draws upon residents as policy actors. This paper uses a governance framework to examine TPI governance in two registers: first, how residents are incorporated into the governance network in each city, and second, resident perspectives and decision-making as policy actors. We find that decentralized environmental programs such as tree planting can encourage strong networks if they are founded on reliable partnerships and multiple ways of reaching individual residents. Residents are categorized into four different groups – policy actors, communicators, negotiators, and passive recipients – based on their actions, decision-making, and motivations. Residents categorized as policy actors, communicators and negotiators showcased increased community and tree care stewardship activities. Decentralized environmental governance can facilitate resident conceptualization as policy actors by encouraging individuals participation in program decision-making. • Residential tree planting programs can be successful in dense urban neighborhoods. • Decentralized environmental governance relies heavily on residents to be policy actors. • Residents that are policy actors perform both community and tree care stewardship. • Environmental programs can encourage individuals by providing choices and incentives to communicate about the program. [ABSTRACT FROM AUTHOR]

Cities are central to the fight against climate change, but the IPCC recently noted that many cities — and particularly those in the developing world — lack the institutional, financial and technical capacities needed to switch to low emission development paths. Based on detailed case studies of three Asian cities, this paper finds that the adoption of low emission development strategies (LEDS) at the urban level could be economically attractive. However, it also argues that without a coordinated multi-level, cross-sectoral governance framework these opportunities for low carbon urban development are likely to be left unexploited. As these governance conditions are frequently not in place, we argue that these case study cities, and cities in similar contexts, are likely to miss even the economically attractive low carbon development opportunities and become increasingly locked in to higher cost, higher carbon development paths. Due to their growing size and importance, we conclude that the presence or absence of governance arrangements that enable the adoption of low carbon development strategies in Asian cities will have global implications for climate change. [ABSTRACT FROM AUTHOR]

The European Union has relied upon information symmetry theory to foster decarbonization of existing buildings in cities under the hypothesis that efficient buildings receive a market premium. Hedonic analysis of housing prices across European cities suggests the existence of such a premium; while opinion-based research concludes that households pay scarce attention to energy performance when letting or buying a home. These approaches render inconclusive evidence regarding the role of energy-information symmetry as public policy in climate change mitigation through market prices. Since energy-efficiency attributes are contingent on the architectural quality of homes, poor control of the latter in hedonic models may bring biased conclusions regarding the former. The main contribution of this piece is to improve the control of these non-energy attributes using a visual inspection of listed apartments in Madrid and Barcelona. Results suggest that the energy-efficiency price premium completely disappears when other quality attributes are considered in full. This finding has large implications for energy and city policies. • Energy performance impact on housing prices fades out when controlling for architectural quality in Madrid and Barcelona. • Insufficient control of architectural quality may inflate the marginal price of energy efficiency in hedonic models. • Omitting the relationship between energy performance and homes' quality attributes may inflate hedonic agenda's results. • Administrative data sets used in hedonic models may be complemented by self-assessed quality attributes. • In Spain, the EPC scheme seems to fail in providing price differentiation in the residential market. [ABSTRACT FROM AUTHOR]

The carbon balance in urban areas has become a major research challenge and a principal policy concern in efforts to address anthropogenic climate change. Rapid urbanization and industrialization in China urge the search for integrated strategies to mitigate and adapt to climate change, which not only limit to traditional infrastructure sectors, but also cover urban green infrastructure, because plants and soils function as carbon sinks through biotic sequestration. This study presents a nationwide study about how urban green infrastructure could contribute to the carbon balance in 35 major Chinese cities. By the end of 2010, the total area of urban green spaces (the dominant components of urban green infrastructure) accounts for 6.38% of the total land area of these cities and represented 51.7% of the total urban green spaces of all 657 cities in China. Based on empirical data from the literature, the total amount of carbon stored in the vegetation of the urban green infrastructure of 35 cities was estimated at 18.7 million tons, with an average carbon density of 21.34 t/ha. In 2010, the amount of carbon sequestration totaled 1.90 million tons with an average carbon sequestration rate of 2.16 t/ha/year. Collectively, only 0.33% of the carbon emissions from fossil fuel combustion can be offset, ranging from 0.01% in Hohhot to 22.45% in Haikou. Nevertheless, the dominance of young vegetation stands in Chinese urban green infrastructure suggests this small carbon sequestration efficiency could become substantial in the near future, given that appropriate policies and management practices are adopted to promote urban green infrastructure for climate change mitigation and adaptation. [ABSTRACT FROM AUTHOR]

What makes one green in a green capital? Previous research on actions to combat climate change using large national samples identifies how socio-demographic attributes and attitudes and belief profiles condition an individual's propensity to take actions to improve the environment. Our approach investigates a smaller and more specific context – Copenhagen, Denmark – to unlock pathways that animate individuals to combat climate change in a city considered to be one of the world's greenest. Using a survey of approximately 1000 Copenhageners, we compare socio-demographic characteristics with attitudinal and belief profiles to see how each explanation predicts four pro-environmental behaviors. We find that attitudes and beliefs, especially with environmental concern and political ideology, tend to be more associated with pro-environmental behaviors compared to socio-demographic characteristics. We conclude by discussing how even in the context of a green capital, familiar pathways to pro-environmental actions are found. • Urban sustainable futures require individuals to combat climate change. • Pro-environmental behaviors are relatively high in Copenhagen. • Political divides found in uptake of pro-environmental behaviors. • Environmental concern and gender also divide levels of pro-environmental behaviors. • Implications center on challenges of urban environmental policy [ABSTRACT FROM AUTHOR]

In recent decades, climate city networks, understood as formalized subnational governance networks that have climate change as their focus, have emerged, linking cities to the global climate governance regime and helping them to take climate action locally. Such city networks are considered an essential aspect of urban climate policy and governance. Scholarship on climate city networks has illustrated that such networks can no longer be understood as homogenous groups of organizations; rather, they show heterogeneity in how they seek to attract and engage with member cities. In this article, we unpack this heterogeneity and interrogate the various ways in which climate city networks attract and engage with their members. We are particularly interested in understanding what typifies climate city networks with an active member base. In studying 22 real-world climate city networks, we uncover five distinct types of networks with an active member base. The typology illustrates the rich, but bounded, variety of climate city networks, and helps to clarify how climate city networks can be effective in encouraging their member cities to take local climate action. • Five distinct types of climate city networks with an active member base are uncovered. • The typology illustrates different strategies for climate city networks to encourage their members to take climate action. • The full set of climate city networks is heterogeneous enough to attract more than just pioneers and leading cities. [ABSTRACT FROM AUTHOR]

Cities must transform in order to address the challenge of climate change and to achieve societal ambitions such as the sustainable development goals. However, a key impediment to achieving transformation is underdeveloped understandings of how key actors and sectors within the built environment work together to achieve goals. This paper addresses these gaps by developing and visually presenting a process map to describe: the key processes involved in producing the built environment across its life stages; key sectors of the built environment, their key actors, and the activities coordinated between them. The process map was peer reviewed by an expert reference group of built environment professionals active in Australia and the UK. The motivation for developing this process map is to facilitate future research to identify and expedite opportunities for coordinated action to address significant societal challenges such as climate change action, and the sustainable development goals – which require transformative action in cities. • Cities must transform to address climate change • We develop a process map to describe the production of the built environment • Process map describes fundamental activities for producing the built environment • Process map spans built environment life stages; identifying activities and interactions of key sectors and actors • Can be applied to inform transformative action targeted at challenges such as climate change [ABSTRACT FROM AUTHOR]

Climate change policy is an essential driver of urban sustainability, yet minimal research has examined how they emerge and spread across cities in shared metropolitan areas. While policy diffusion or policy mobility theories could explain the aforesaid, much of the international scholarship have not utilized an amalgamation of these two complementary theoretical perspectives. As a result, we lack a comprehensive understanding of the regional dynamics and spillover effects local governments can generate for urban sustainability. This article proposes a contingent diffusion model to examine the intra-regional adoption of local climate action plans within Southern California from 2000 to 2018. We find that neighboring jurisdictions that adopt climate policy increase the likelihood of a home city's adoption. Yet, neighboring effect is contingent on the home city's existing pro-environmental policy propensity. However, in contrast to conventional wisdom, this study finds no evidence that local environmental advocacy groups play a crucial role in the diffusion of municipal climate initiatives. Altogether, the results suggest that a regional diffusion model of policy innovations is more likely successful when adaptive capacity is in place to facilitate green infrastructure. These findings provide implications for policymakers and planners who want to achieve successful spillovers of urban climate policies across local governments. • 49 cities among 190 cities within the Southern California Region adopted climate action plans (CAPs) from 2000 to 2018. • Local governments can be incubators and transmitters of climate policy innovations to others within a shared regional space. • This study builds on policy diffusion and mobility literature to examine an intra-regional diffusion of local climate policy. • A neighboring spillover effect is found to be contingent on a home city's existing pro-environmental adaptive capacity. • To tap such spillover effects, urban and regional planners must consider their cities' adaptive capacity or lack thereof. [ABSTRACT FROM AUTHOR]

Highlights: [•] The capacity of local comprehensive plans in drought preparedness was examined. [•] Counties sampled are weak in drought preparedness through land use planning. [•] Local planners shall take the lead in drought mitigation and preparedness planning. [ABSTRACT FROM AUTHOR]

Abstract: Climate change was not on the policy agenda in Hong Kong before 2007. In 2010, a consultation document, Hong Kong’s Climate Change Strategy and Action Agenda, was published proposing a voluntary carbon intensity reduction target of 50–60% by 2020 (from the 2005 level). This review attempts to understand why there was a sudden shift to climate issues and whether the proposed strategy, actions and targets are appropriate to the climate change challenges faced by the city. Through synthesizing existing literature on climate change at the city level, a framework outlining possible actions at the strategic, knowledge accumulation and implementation phases is developed to position Hong Kong’s experience. It is found that Hong Kong’s move towards climate change is strongly affected by China’s efforts. The city is facing some real climate change threats. However, while the carbon intensity reduction target looks impressive, it is actually too modest for the city’s developed economy. The city needs to reflect critically on its economics-first strategy and undertake more refined vulnerability studies and risk assessments to identify spatially and sectorally-specific adaptation measures. To be a responsible global citizen and to pursue sustainable development, Hong Kong needs more concerted and comprehensive efforts to combat climate change. [Copyright &y& Elsevier]

Abstract: With 60% of the population younger than 26years, a need of about 1.5 million residential units per year for the next 5years and the necessity of mitigating its rapidly growing GHG emissions together with adapting cities to the expected drastic effects of climate change, Iran’s urban agglomerations are facing tremendous challenges now and in the future. The paper presents interim findings of the German–Iranian research initiative “Young Cities” (2005–2013) that investigates approaches for these immense challenges. The project aims at developing energy-efficient and resilient housing in a real-life pilot project, the 35ha area in Hashtgerd New Town in the Tehran province. The article explores the framing conditions and the master plan of this pilot and identifies four key planning strategies. Besides applying climate-sensitive urban form, the project stresses the need to develop culturally adapted building typologies for reduced heating and cooling, an efficient public transport in a mixed and dense urban structure and integrated water and energy systems on the neighborhood level. Simulations of these planning approaches have proven a significant reduction of energy- and resource consumption and the capacity of the design to adapt to (a potentially changing) environment. These promising strategies for energy-efficiency and resilience were transferred into a legally binding comprehensive plan commissioned in October 2010, though the major challenge in the second phase of the project (2011–2013) will be making these innovations a built reality. [Copyright &y& Elsevier]

Abstract: Local authorities are important actors to mitigate climate change. They can implement policies which can reduce emissions of greenhouse gases in sectors like transport, waste, agriculture and land use, land use change and forestry (LULUCF). They can also implement policies which can increase carbon dioxide removals. The European Union Emissions Trading Scheme (EU ETS) is one of the most important initiatives to reduce carbon dioxide emissions in the EU. It is a cap and trade scheme encompassing almost half of the European-wide carbon dioxide emissions. However, carbon dioxide removals and sectors associated with local authorities’ responsibilities are not included in the EU ETS. The main objective of this paper is to propose an original cap and trade system, called LETS, designed to involve local authorities. The LETS was then tested and applied to all the local authorities in the mainland of Portugal covering emissions and removals of a single greenhouse gas (carbon dioxide) in the LULUCF and the transport sectors. The system proved to have the necessary conditions to be implemented and adaptable to other country contexts. [Copyright &y& Elsevier]

Abstract: The transformation of single family home settlements is a central issue in the search for a more sustainable city. This residential model remains very popular among middle class households, in spite of the relevant costs and impacts related to its functioning. Local authorities are increasingly concerned with its associated impacts, even when they do not have clear planning strategies. The case study presented is about a municipality that is part of the Catania Metropolitan Area, in Italy. Built up areas cover more than 50% of the municipality’s total land and the prevailing development type is the detached single family home. The existing settlement pattern is essentially an “automobile city” for about 20.000 inhabitants with a very limited presence of services. The analyses conducted show that this settlement is unsustainable, not in terms of insufficient green areas, or permeable soils but because it lacks any urban quality. The resulting impact on the environment is considerable both in terms of greenhouse gas emissions and the contribution to urban water runoff. The paper presents the first results of a consulting activity for the local municipality that is revising its General Master Plan. This activity, conducted by the University of Catania, includes a set of analyses based on land use data and the definition of general planning criteria. The aim is develop a proposal, based on principles of sustainable urban planning, that can effect a change towards a new pattern of urban development characterised by densification, mixed use planning and reduced private car dependence by concentrating new services in pedestrian oriented areas. The challenge of the proposal presented is to define a set of specific rules that can limit the uncontrolled sprawl by contextualising these general and widely accepted principles to local conditions. The work is part of GRaBS (Green and Blue Space Adaptation for Urban Areas and Eco Towns), a project funded by the EU Interreg IV C programme). [Copyright &y& Elsevier]

Urban areas play a pivotal role in mitigating greenhouse gas emissions and adapting to adverse effects of climate change, worldwide. Climate-related assessment of urban development projects shall contribute to reduce complex climate vulnerability, especially in fast growing cities in emerging economies. Hungarian cities face significant challenges regarding changing climatic patterns, consequently climate-oriented assessment methodology to evaluate the performance of urban development interventions is needed. The main aim of the research was to elaborate on a comprehensive methodology that can define mitigation, adaptation, and awareness-raising aspects of interventions; moreover may reveal path dependencies in order to avoid negative lock-ins during urban development activities. The developed method uses a three-step scoring approach to assess both direct and indirect impacts of selected interventions while taking into account the main objectives of the Budapest Climate Change Strategy as evaluation criteria in order to strengthen local-specific characters. By applying the developed methodology, the main conclusions can be defined by paying attention to weaknesses and strengths of the selected interventions regarding mitigation, adaptation, and awareness-raising issues; thus, further recommendations were identified to improve their overall climate performance and to avoid negative lock-ins. • Analysis of urban development actions is crucial in avoiding negative lock-ins. • The developed method uses a three-step scoring approach to assess both the direct and indirect impacts of selected interventions. • Further recommendations were identified to improve their overall climate performance and to avoid negative lock-ins. • The recommendations made in the present paper may support the decision making processes during the whole life cycle of planned actions. [ABSTRACT FROM AUTHOR]

This paper aims to contribute to the limited understanding and recognition of soil ecosystem services (SoES) in spatial planning. In light of its critical role in climate crises and due to its global degradation, soil has drawn considerable attention in the recent global agenda. As one of its vital services, soil serves as a terrestrial carbon pool, which significantly contributes to offset greenhouse gas emissions in the atmosphere (EEA, 2012). The capacity of soil in climate change mitigation and in the provision of ecosystem services can be enhanced and safeguarded by integrated spatial planning strategies. However, due to limited political attention and fragmented frameworks on land and soil management, anthropogenic pressures on soil are reaching critical limits and causing soil degradation. In this context, the paper underlines the interconnectedness of SoES, climate change and spatial planning and discusses their multifaceted interactions through a hypothetical framework based on the Nexus approach. Herein, the paper aims to (i) develop an outline for classification of SoES; (ii) analyze background dynamics of soil degradation interacting with climate change; (iii) discuss recent policy frameworks referring to soil protection and SoES; (iv) propose measures for possible integration of SoES into spatial planning through SoES-Climate Change-Spatial Planning Nexus. • Soil has not been studied thoroughly by up-to-date Ecosystem Services frameworks. • There is a knowledge gap in safeguarding SoES through spatial planning. • Soil has not been fully incorporated into climate change mitigation strategies. • The SoES-Climate Change-Spatial Planning Nexus is critical for sustainable cities. [ABSTRACT FROM AUTHOR]

Bhutan is a rapidly growing economy currently undergoing swift and extensive rural-to-urban migration. Its commitment to carbon neutrality, as well as its unique Gross National Happiness (GNH) objectives, make Bhutan a fascinating laboratory for studying sustainable development strategies and how they can be specifically tailored to align with local contexts and values. This paper uses the framing of the Shared Socioeconomic Pathways (SSPs) from the global climate change mitigation literature to develop a vision for a locally appropriate SSP for a sustainable Bhutan, encompassing energy supply, energy demand, and urban and regional planning. The approach outlined here demonstrates how research-based recommendations from the academic literature can be combined with knowledge of local considerations to develop place-based visions for sustainable societies. The proposed sustainable pathway for Bhutan (SSP1) outlines a future in which the nation continues to sequester more carbon than it emits while maintaining traditional cultural values, a strong sense of community, and a burgeoning economy. Outcomes of alternative scenarios are described according to the nine domains of GNH. Focusing on Bhutan as a real case study, this paper thus demonstrates how mitigation measures can be selected and implemented to align with unique cultural values and national aspirations. • Identify the place-based sustainable transitions • Develop an extended Shared Socioeconomic Pathways (SSPs) for Bhutan • Develop assumptions of regionally balanced development scenario as SSP1 (Sustainability) • Analyze mitigation measures and options based on Bhutan's sustainability pathway • Raise key factors to achieve a sustainable Bhutan based on developed scenarios [ABSTRACT FROM AUTHOR]

Surrey, British Columbia, stands out in its efforts to go beyond the provincial mandate on climate change mitigation and incorporate adaptation into strategic planning. The community is not currently overwhelmed by climate change impacts, and has local agents and institutions in place to facilitate anticipatory climate adaptation planning. However, as seen with many other coastal communities, implementation of adaptation action is lagging in practice. Framed through the lens of resilience theory, this research investigates climate change threats and the dynamic relationship between local scale adaptation policy development, integration and implementation in practice. With Surrey as a case study, this research examines key actor narratives and strategic planning documents in order to understand how the community acts on climate change adaptation while being mandated to address mitigation. Findings suggests that while resilience building agents (e.g. senior management, elected officials) can spearhead and organize climate action, their ability to implement goals and policies in practice is largely determined by the robustness of institutions (e.g. strategic plans, policies) and systems (e.g. infrastructure, ecosystems). This case may provide decision-makers in other communities coping with similar climate threats with insight into the factors that can enable and challenge local adaptation planning processes. • Surrey, BC has shown resolve to advancing resilience to climate risk by integrating adaptation throughout policy and planning. • Agents can drive an agenda for climate adaptation, but implementation is determined by robustness of institutions and systems • Committal language around climate change action in strategic planning documents is critical for action to follow in practice. • There is value in including a variety of climate adaptation types in practice, including consideration for ecosystem health. [ABSTRACT FROM AUTHOR]

• Lack of coordination and resource capacity constrain sustainable urban transport. • Issue-bundling and civil society participation can enable sustainable transitions. • Building blocks of socio-technical transitions rest in actors taking advantage of windows of opportunities. • Climate change policies often need to be coupled with other policy agendas to gain widespread support. • Framing climate mitigation as a local issue is critical to facilitating meaningful transitions. [ABSTRACT FROM AUTHOR]

Residents of informal settlements are some of the most vulnerable urban groups to the effects of climate change. Different responses have emerged to intervene in these communities and slum upgrading is currently considered the best framework. How slum upgrading interventions engage with climate change adaptation and mitigation is not fully explored in the literature. This article scrutinizes three recent slum upgrading programs in Latin America to uncover the ways these tend to engage or not with climate change adaptation and mitigation. The analysis revealed that slum upgrading is both a policy mechanism to address socio-economic issues and an instrument by which built-environment interventions can enhance adaptation and mitigation in informal settlements. Six key areas emerged from the analysis of the case studies that link slum upgrading to climate change adaptation and mitigation through infrastructure and policies: (1) security of tenure , (2) relocation and barriers , (3) public space , (4) energy-efficient and improved architecture , (5) connectivity , and (6) land management. Slum upgrading can be an effective mechanism that combines mitigation and adaptation efforts whilst addressing sustainable development priorities in disadvantaged territories. • Residents of informal settlements are highly vulnerable to climate change • Innovative slum upgrading approaches are found in Latin America • Slum upgrading can propel climate change adaptation and mitigation efforts • The Paris Agreement goals overlap with development priorities in the global south • A novel slum upgrading model is needed in the context of sustainable development [ABSTRACT FROM AUTHOR]