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The article focuses on the impact of the green energy transition on property assessment organizations and tax policies in Canada. Topics discussed include government initiatives for climate action, the emergence of Property Assessed Clean Energy (PACE) programs, and the assessment practices and tax policies in Canadian provinces regarding climate change.

This research assesses the transition of a fossil fuel-based electricity production jurisdiction to a renewable-based electricity jurisdiction through an extensive scenario analysis. This fills a knowledge gap where a wide-range of fossil-to-renewable electricity generation pathways is compared within a single analysis framework. To conduct this study, a novel data-intensive electricity system model was developed with the Long-range Energy Alternatives Planning system and applied to evaluate alternative electricity generation mix scenarios to the year 2050. A case study for Alberta, a fossil fuels-based province in Canada, was conducted. A total of 382 scenarios were analyzed considering different renewable pathways and varying key uncertain future conditions. The greenhouse gas emission abatement and marginal greenhouse gas abatement costs of each scenario were evaluated and compared. Several renewable-based scenarios resulted in significant greenhouse gas abatement at lower costs than the fossil-fuel based business-as-usual scenario. The maximum greenhouse gas abatement possible at a net cost reduction compared to the business-as-usual scenario was found through a specific combination of wind, hydro, and solar power which resulted in over a 90% reduction from 2005 emission levels at −$1.8/t of carbon dioxide equivalent abated. The results of this study provide policy insight for jurisdictions transitioning away from fossil fuel-based electricity to renewables. • A new Long-range Energy Alternatives model is developed and applied. • Extensive analysis of energy transition for a fossil-fuel electricity sector. • 382 scenarios representing different technology mixes and assumptions are evaluated. • Highly renewable technology mixes offer system cost savings compared baseline. • Over 90% greenhouse gas mitigation technically and economically feasible. [ABSTRACT FROM AUTHOR]

This paper explores the perceptions and future imaginaries of a group of union members in Manitoba, Canada, concerning climate change, energy transition, and the roles of unions and workers in climate politics. Based on interviews with 30 rank and file workers carried out through the winter of 2020, the results suggest some starting points for a more active engagement between the labour movement and climate politics—an engagement that is central to climate justice, and that becomes more vital every moment as workers both participate through their waged labour in the production of ecological crisis, and stand to suffer intensely from both climate change and from elite-led energy transitions. • Unionized workers broadly agree with the characterization of "climate emergency." • Participants connect to climate change through expanded spatial and temporal considerations. • There is broad agreement that climate change is a key consideration in unions' protective role. • Union workers' future imaginaries of energy transition do not frequently engage with "system change" narratives. • Union workers characterize transition as something done to, rather than by, workers. [ABSTRACT FROM AUTHOR]

The article focuses on future of Canada in 2067 with reference to its population, energy transition and climate change. Topics discussed include increasing population of Canada, immigrants living over there, population forecasting, increased greenhouse gas emissions in Canada and its changing environmental conditions. It further discusses forecast issued by environmental organization Environment and Climate Change Canada, regulations on environmental protection and economic aspects of global warming.

In this paper, we explore how the power wielded by regional incumbents has impacted subnational innovation agendas. Our findings suggest that the design of mission-oriented innovation policies should be more attentive to regional innovation policies and their relationship to how innovation may serve to bolster incumbents and not undermine them. We use a case-study of innovation in fossil fuels. Recently, innovation policy literature has explored innovation policy and global climate as a major topic. On the one hand, carbon lock-in has been used to explain why there has been such difficulty in reducing carbon emissions, in many cases, despite an increasing emphasis of mission-innovation policies. On the other hand, mission-innovation policies are believed to be a key to the development of disruptive innovations that could break this carbon intensive path dependency. Although the two literatures explore the same problem, there could be more integration. While carbon lock-in is being considered in the mission-innovation literature, it nevertheless has been largely overlooked at the mission-setting stage. On the other hand, the lock-in literature has tended to overlook the findings of mission-oriented innovation literature in offering solutions, which suggests that there is a more productive role for mission-oriented innovations in breaking free of previous constraints to serve in the low-carbon energy transition. To make our case, we argue it is important to distinguish among the various impacts disruptive innovations have on the market shares of incumbents'. We propose the following three schema: new market, market rewarding and market destroying. By variegating the potential impact of innovations, we suggest that mission-oriented innovation polices may be designed to only support certain types of innovations that do not directly undermine the market share of incumbents. Using a detailed case study of the Province of Alberta, Canada, we then explore the role of the province's mission-oriented policy in the development of technology to produce the Canadian oil sands. The case study illustrates how incumbents influenced the establishment and direction of the mission's goal. Shifts in incumbency opposition toward the province's mission-oriented innovation policy coincided with the changing impact of the innovation from being market destroying to market rewarding. We suggest that future research should be more attentive to the role of incumbents in influencing mission-oriented innovation policy and the importance of their influence at the mission-setting stage. Furthermore, we suggest that to meet the grand challenge of addressing climate change through mission-oriented innovation policies, these policies must be designed to break free of these institutional constraints. [ABSTRACT FROM AUTHOR]

Limiting global warming to 1.5–2.0°C in line with our climate commitments will require decarbonization of residential buildings. The traditional approach starts with major energy efficiency upgrades to the building envelope followed by switching to low‐carbon fuel sources for space and water heating. Building envelope retrofits have been a policy goal for over two decades in Canada and elsewhere, yet historical rates and associated emission reductions fall far short of what is required if we are to meet our climate targets. Alternatively, we propose direct fuel switching to electric heat pumps for space and water heating in regions with low‐carbon electricity. Using a database of 44,463 home energy profiles in Waterloo Region, Canada, we modeled the energy efficiency and greenhouse gas emission impacts of building envelope retrofits and direct electrification. While all retrofit plans achieved significant energy efficiency gains (17‐40%), so did direct electrification (70%) and building envelope retrofits plus electrification combined (70‐80%). Only plans that included electric heat pumps achieved greenhouse gas emission reductions of 90% or more. Compared to the conventional approach, direct electrification with heat pumps may be a simpler, more effective, and more realistic approach for policies aiming to decarbonize the residential sector. Key Messages: Direct electrification of residential space and water heaters with heat pumps is a simple and effective approach to decarbonization.Building envelope retrofits should be required as the first step toward electrification only in the most energy‐inefficient homes.Electricity infrastructure must be modernized to accommodate direct electrification of residential buildings and other sectors. [ABSTRACT FROM AUTHOR]

Without fundamentally altering how humans generate and utilise energy, there is no effective strategy to safeguard the environment. The motivation behind this study was to analyse the effectiveness of renewable energy in addressing climate change, as it is one of the most pressing global issues. This study involved the analysis of panel data covering 138 nations over a 27 year period, from 1995 to 2021, making it the latest addition to the existing literature. We examined the extent of the impact of renewable energy on carbon dioxide over time using panel, linear, and non-linear regression approaches. The results of our analysis, revealed that the majority of countries with the exception of Canada, exhibited a downward trend, underscoring the potential of increasing renewable energy consumption as an effective method to reduce carbon dioxide emissions and combat climate change. Furthermore, to reduce emissions and combat climate change, it is advisable for nations with the highest carbon dioxide emissions to adopt and successfully transition to renewable energy sources. [ABSTRACT FROM AUTHOR]

The article focuses on future of Canada in 2067 with reference to its population, energy transition and climate change. Topics discussed include increasing population of Canada, immigrants living over there, population forecasting, increased greenhouse gas emissions in Canada and its changing environmental conditions. It further discusses forecast issued by environmental organization Environment and Climate Change Canada, regulations on environmental protection and economic aspects of global warming.

Community renewable energy is increasing globally, but many northern and remote Indigenous communities remain energy insecure. Community appropriate sustainable energy solutions requires more than building renewable energy projects – it requires local socio-technical capacity to design, implement, and maintain renewable energy projects. Yet, notwithstanding advances in renewable energy technology there is limited understanding of the socio-technical capacity of northern and remote Indigenous communities to engage in energy transitions. Based on a review of energy transitions scholarship and northern contexts and informed by a workshop engaging northern and Indigenous community members from Canada and Alaska, this paper presents foundational pillars for assessing the socio-technical capacity needs of communities to pursue and sustain local energy transitions. These pillars are inter-dependent and emphasize the importance of local energy champions and inter-local energy networks to enable innovation and capacity building; community values that articulate immediate and longer-term goals for energy transition, including the social and economic opportunities to be realized by a more sustainable energy system; community knowledge of local energy resources, technologies, and opportunities, and embedded skills to support transitions; and the skills innovation to pursue and manage new energy systems, coupled with youth engagement as future community energy leaders. The proposed framework is intended to support the early stages of community energy transition planning. • Energy transition in remote communities involves more than building new projects. • Socio-technical capacity is critical to renewable energy security in remote off-grid areas. • Seven pillars are proposed to guide local capacity assessment for community energy. • Renewable energy in remote communities means self-sufficiency and self-determination. [ABSTRACT FROM AUTHOR]

Remote community initiatives for renewable energy are rapidly emerging across Canada but with varying numbers, success rates, and strategies. To meet low-carbon transition goals, the need to coordinate technology deployment and long-term policy to guide the adoption is critical. Renewable resources such as wind, solar, hydro, and biomass can provide energy at a subsidized cost, create sustainable infrastructure, and provide new economic viability in social value integration. The renewable energy transition is crucial to Canada in sustaining remote and indigenous communities by providing local, clean, and low-carbon-emission energy for heat, power, and possibly transportation. This paper identified 635 renewable resources projects deployed to improve and increase electricity supply. To an extent, balancing demand within the remote and indigenous communities of Canada and highlighting sustainable renewable energy development through ownership participation within the communities is achievable before 2050 and beyond through energy efficiency and the social value of energy. The article identifies clean energy targets as mandated by the different provinces in Canada to reach net-zero GHG emissions. [ABSTRACT FROM AUTHOR]

• Assessments of H 2 transition rarely integrate empirical growth or learning rates. • We model plausible transition pathways in the Atlantic Maritimes region of Canada. • Achieving 2050 targets requires aggressive performance and scaling assumptions. • Compound annual growth rates need to meet or exceed 36%. • H 2 avoids carbon less cost-effectively than direct integration of renewable power. Large jurisdictions—including Australia, Canada, the European Union, the United Kingdom, and the United States—are aggressively pursuing a role for hydrogen in the net-zero transition. Past assessments focus on pilot projects or hydrogen hubs and assume cost-competitive hydrogen production by a certain date. Here, we simulate a production facility that couples offshore wind with electrolysis to produce green hydrogen in Canada's Atlantic Maritimes—a region with a size and energy profile similar to other nations', with fossil and nuclear infrastructure that will retire prior to the 2050 net-zero target. We employ growth and learning rates derived from industrial experience and estimate the installed capacity, cost, and emissions of this integrated energy system. Various scenarios are considered, including ones with and without hydrogen storage; one that integrates offshore wind into the grid instead; and one that serves the hydrogen needs of freight transportation. Hydrogen production is at least four times more expensive than grid integration. Projects could only be implemented by 2050 and at <2 $/kgH 2 by assuming aggressive growth rates, learning rates, and electrolyzer capital costs of 500 $/kW. This analysis gives policymakers an appreciation of the effort, costs, and emission benefits of producing green hydrogen at scale. [ABSTRACT FROM AUTHOR]

Environmental assessment (EA) is an important entry point to the development of renewable energy projects, yet the role of EA in the renewable energy sector remains poorly understood in comparison to its role in assessing and managing the potential impacts of traditional fossil fuel-based energy developments. This paper examines the requirements and provisions of EA for renewable energy development, specifically wind energy development, across Canada and the implications for renewable energy transition. Results show considerable variability in EA requirements and provisions for wind energy, including such factors as EA timelines, screening approaches, proponent responsibilities for consultation, and whether a proposed wind energy development even triggers an EA review. Differences in EA systems and procedures for wind energy projects may have implications for the predictability of EA and the relative attractiveness of certain jurisdictions for wind energy developers. As countries transition to renewable energy technologies to meet climate change targets and to deliver sustainable energy to remote and developing regions, the role of EA in balancing good environmental reviews with the pressing need to build and operate renewable power production requires further attention. This paper outlines four areas where improvements are needed in EA systems to meet these dual objectives. [ABSTRACT FROM AUTHOR]

Scientists advise limiting global warming to 1.5°C with substantial actions by 2030. Our viewpoint argues that climate response strategies in Canada have underemphasized and underestimated the potential contribution deep energy retrofits can make to greenhouse gas (GHG) emissions reductions, leading to inadequate responses in the building sector, and that Canada can (and should) be ambitious with building retrofits over the next decade. GHG savings from building retrofits can be realized more quickly than GHG reductions from other sectors, and either deliver net cost savings or are cost‐effective when compared to other mitigation measures. Retrofits can also provide social and economic benefits, such as improved health and comfort, and lower energy costs. This paper reviews energy use and building retrofits in Canada and argues the following should be implemented: (1) focus innovation on deep energy retrofit processes, not singular retrofit actions; (2) maximize both social and environmental benefits; (3) improve data gathering and availability for analysis and delivery; (4) innovate for a process of decisions and to avoid "dropouts" during the retrofit process; and (5) focus innovation on business models that maximize benefits. Key Messages: Greenhouse gas savings from deep energy building retrofits are cost‐effective and can be realized more quickly than reductions from other sectors.Program and policy design should prioritize the greatest social, economic, and environmental benefits.Innovation should focus on the retrofit process, financing, and delivery models, rather than solely on technology. [ABSTRACT FROM AUTHOR]

Finding nature-friendly replacements for fossil-fuels based energy sources are considered vital, and such a task becomes critical for sustainable development. In this regard, hydrogen carries a significant weight potentially and becomes an essential driver in transitioning the economic sectors to carbon-free ones. While the world experiences this kind of transition with hydrogen, Canada appears to be among top ten countries conducting research, development and innovation activities extensively on hydrogen and intending to make hydrogen a key player in their green energy transition. In this study, the contributions of Canadian academic institutions, research centers and other organizations to hydrogen-related research, development and innovation activities over the last fifty years are studied and evaluated comparatively. A comprehensive literature search is conducted to identify the number of hydrogen-related research articles, books, dissertations, patents and funded projects affiliated with Canadian institutes. The findings are presented graphically and discussed from various perspectives. The conducted literature search results show that Canadian institutes have contributed to hydrogen research with a total of 112,454 scholarly publications from 1971 to 2021. During period, the number of hydrogen-related academic articles and books has become 108,437 and 2995, respectively. In the subject area of energy, the relatively young Canadian institution, Ontario Tech University, has contributed the highest to hydrogen research in Canada by producing about 11% of academic articles and about 27% of books, book chapters, and editorials in the subject matter field of hydrogen research and development activities. [ABSTRACT FROM AUTHOR]

Given the scale of plastic generation, its persistent presence in the environment, and the urgent need to transition to a net-zero emissions paradigm, managing plastic waste has gained increasing attention globally. Developing an effective strategy for plastic waste management requires a comprehensive assessment of the potential benefits offered by different solutions, particularly with respect to their environmental impact. This study employs the life cycle assessment (LCA) methodology to evaluate the environmental impact of two alternative scenarios to the As-Is scenario for managing plastic waste in the province of British Columbia in Canada. The LCA results suggest that the Zero Plastic Waste scenario, which heavily relies on chemical recycling, may not inherently result in a reduced environmental footprint across all impact categories. This is notable when the focus is solely on end-of-life treatment processes, without considering the produced products and energy. The Intermediate scenario reduces the amount of plastic waste sent to landfills by directing more end-of-life plastic to mechanical recycling facilities. This scenario provides immediate benefits for resource conservation, with a minimal increase in the environmental burden resulting from treatment processes. Nonetheless, achieving a net-zero transition requires combining traditional and emerging recycling technologies. The current study could offer some guidance to policymakers on strategies for fostering more sustainable management of plastic waste. [ABSTRACT FROM AUTHOR]

This article examines energy issues articulated by Indigenous and non-Indigenous people in Canada and analyzes the energy transition as a locus of reconciliation therein. Using content and discourse analysis of policy documents, white papers, and news media articles, we draw attention to reconciliation and energy discourses before and after 2015, the year that marked the release of the Truth and Reconciliation Commission of Canada (TRC) report and the Paris Agreement on climate change. After 2015, we find a three-fold expansion of those discourses, which encompass issues of inclusion and exclusion, dependency, and autonomy, as well as colonial representations of Indigenous people,. We also find that non-Indigenous voices are more prominent in those conversations. We suggest that the prospects of mutual benefits could turn the energy transition into an opportunity to bring together Indigenous and non-Indigenous people in Canada. [ABSTRACT FROM AUTHOR]

This article draws on the principles of grassroots climate justice movements, social movement platforms, and action networks to lay the groundwork for Green New Theatre in Canada, all the while making the argument that a Green New Theatre can contribute to transitioning from an extractive and exploitative economy to a regenerative one in the face of climate crisis. It identifies some of the seeds already planted for a Green New Theatre in Canada that will build momentum for the transformative change required to transition to a decarbonized, decolonized economy. Finally, it addresses how energy transition will revolutionize our existing system of theatrical production. [ABSTRACT FROM AUTHOR]

Electrifying as many end-uses as technically and economically feasible is a key strategy for achieving net-zero greenhouse gas (GHG) emissions. However, “electrifying everything” is not currently a practical or economical option for everything. In many of these hard-to-decarbonize sectors, hydrogen has a role to play. Hydrogen and hydrogen derivatives can play a key role in certain emission-intensive sectors that are important to Canada’s economy, including steel, chemical and clean fuel production, and possibly heavy freight, long distance rail, and other off-grid end-uses that currently depend on diesel motors. In a companion piece, we discuss the role for hydrogen in electricity systems. Unlike oil and gas, whose resources are isolated to only some parts of the country, hydrogen has the potential for broad participation across Canada due to the ability to produce it from hydrocarbons and clean electricity. The former is likely to dominate in the near term, whereas declining costs for hydrogen from electricity should tilt the economics in that direction in the longer run. In all cases, however, regulators and policy makers should be focused on life-cycle emissions from the production process rather than arbitrary colour classification schemes. Canada’s natural advantages in producing clean hydrogen also puts it in a position to capitalize on new export opportunities from hydrogen-derived products. It already has one of the cleanest steel-production facilities in the world in Québec, a technology that can be adapted to operate on 100% hydrogen. Opportunities exist for Canada to become a green iron or steel exporter, from Québec or even possibly Alberta with its unused iron ore deposits and abundance of hydrogen potential. For hydrogen to reach its potential, there are some key areas where government policy and support will be needed. From helping to establish clean hydrogen industrial clusters, where firms share production and storage infrastructure, to ensuring hydrogen refueling networks for transport are established with sufficient breadth needed for heavy freight transport, government has a role to play in setting up the landscape for innovators to thrive. Ultimately, hydrogen will not solve every decarbonization challenge Canada faces, but it will have a critical role to play as a complement to a variety of strategies aimed at reaching net-zero emissions. Hydrogen has had many “hype cycles” before, and while it is no panacea for decarbonization, it is now genuinely poised to help Canada achieve its net-zero goals. [ABSTRACT FROM AUTHOR]

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Canada will be unable to meet its greenhouse gas pledges—of reducing greenhouse gas emissions by 30% over 2005 levels by 2030—without transitioning away from the current high-carbon economy. This transition will bring new challenges, especially to the Canadian boreal zone. The boreal zone continues to experience intensive natural resource activities including the extraction of forest, mining, oil and gas, and renewable energy products, which in combination with climate change, is placing the future sustainability of the boreal zone at risk. We explored policy options to reduce the risk to the future sustainability of the boreal zone in light of the inevitable energy transition to either a higher or a lower dependence on carbon and the uncertainty of society's capacity to adapt to change. Current policies are putting us on a path towards failure to achieve sustainability of the boreal zone. While current policies may be moving us towards a low-carbon future, they lack a shared vision of what the energy transition will be and engagement by those members of society most impacted; they are top-down, prescriptive, and fragmented, and they lack capacity, accountability, and enforcement. Together these limitations create barriers to society's capacity to adapt to the low-carbon future. Sustainability of the boreal zone will not only require a transition to a low-carbon economy but will require policies that overcome these barriers and create a higher capacity for society to adapt. [ABSTRACT FROM AUTHOR]

Purpose: This research considers the potential for renewable energy partnerships to contribute to Canada's efforts to overcome its colonial past and present by developing an understanding of how non-Indigenous peoples working in the sector relate to their Indigenous partners. Design/methodology/approach: This study is part of a larger research program focused on decolonization and reconciliation in the renewable energy sector. This exploratory research is framed by energy justice and decolonial reconciliation literatures relevant to the topic of Indigenous-led renewable energy. The authors used content and discourse analysis to identify themes arising from 10 semi-structured interviews with non-Indigenous corporate and governmental partners. Findings: Interviewees' lack of prior exposure to Indigenous histories, cultures and acknowledgement of settler colonialism had a profound impact on their engagement with reconciliation frameworks. Partners' perspectives on what it means to partner with Indigenous peoples varied; most dismissed the need to further develop understandings of reconciliation and instead focused on increasing community capacity to allow Indigenous groups to participate in the renewable energy transition. Research limitations/implications: In this study, the authors intentionally spoke with non-Indigenous peoples working in the renewable energy sector. Recruitment was a challenge and the sample is small. The authors encourage researchers to extend their questions to other organizations in the renewable energy sector, across industries and with Indigenous peoples given this is an under-researched field. Originality/value: This paper is an early look at the way non-Indigenous "partners" working in renewable energy understand and relate to topics of reconciliation, Indigenous rights and self-determination. It highlights potential barriers to reconciliation that are naïvely occurring at organizational and institutional levels, while anchored in colonial power structures. [ABSTRACT FROM AUTHOR]

Impact assessment can play an important role in global energy transition, delivering knowledge to identify and manage the impacts of renewable energy projects. Yet, there are enduring concerns about IA's efficacy for renewable energy development. Based on content analysis of IA applications for wind energy development in Canada, this paper examines the environmental and social impacts typically assessed across wind energy projects and the mitigation solutions proposed. Results indicate considerable imbalance between biophysical versus social impacts, including mitigation solutions. IAs include far more solutions for managing biophysical impacts than social ones, with impact-to-mitigation ratios of 1:4.3 and 1:1.3 respectively. Most mitigations focus on impact minimisation, followed by avoidance, and are often vague and imprecise regarding the timing, methods of implementation, and responsibility. Notwithstanding common impacts, mitigation actions that were common across projects were too vague or imprecise to support transferable practice to find efficiencies in assessment. Improved understanding the impacts of renewable energy projects and mitigation solutions, and learning from one project to the next, are foundational to advancing the role of IA the transition to renewable energy. [ABSTRACT FROM AUTHOR]

This study presents a systematic workflow for estimating hydrogen storage capacity for a smooth energy transition from natural gas market to hydrogen market to achieve net-zero emissions. The workflow establishes maximum and minimum thresholds for hydrogen storage and considers appropriate storage techniques, including underground or surface facilities. The technique assesses environmental footprint of each storage technique and evaluates associated emission reductions. We apply this workflow to energy market in Alberta and project minimum and maximum storage thresholds of 0.28 and 5 megatonne/year (Mt/year) by 2050. Under three distinct storage scenarios, the storage capacity necessitates 128 salt caverns, 10 million compressed gas tanks, or 78,150 cryogenic liquefied tanks. Salt cavern storage emerges as a promising choice owing to its relatively lower emissions of 0.16 MtCO 2 e/year and a land footprint of 2.56 km2. The net emission reduction achieved is 1.47 MtCO 2 e/year, equivalent to 0.8% of Canada's target emission reduction of 190 MtCO 2 e/year by 2050. • A workflow is developed to forecast required hydrogen storage capacity in Alberta. • Salt caverns emerge as a reliable and practical technique for large-scale hydrogen storage. • The workflow projects the required number of salt caverns for hydrogen storage. • Supplying stored hydrogen to market reduces 1.5 megatonne/year of GHG emissions. [ABSTRACT FROM AUTHOR]

Decarbonizing energy systems through the integration of decentralized renewable energy generators creates opportunities for community-scale actors to participate in energy system decision-making. However, typical modelling approaches exclude community stakeholders, causing a loss of local knowledge. This exclusion is problematic for Indigenous peoples in so-called Canada where the natural resource industry harms their land and communities. The Exploring Grassroots Renewable Energy Transitions (EGRET) platform introduced in this work presents an alternative to typical energy system modelling because it facilitates community participation throughout the model development and application process. This platform was developed in partnership with a local First Nation's energy specialist to assess whether solar panels could increase community energy sovereignty. The platform's user interface, visualization suite, and high-speed machine learning models make energy system modelling accessible to community members through interactive workshops. In the future, the EGRET approach could be generalized for stakeholder-led renewable energy exploration in other community settings. [ABSTRACT FROM AUTHOR]

Phosphate is an indispensable component in the fertilizer industry. It has recently become a critical part of the green energy transition because of the demand for lithium ferro phosphate in rechargeable batteries. A significant amount of phosphate ore (∼90 %) is globally produced from sedimentary rocks. High-quality phosphate ore containing low amounts of toxic elements, however, is mostly produced from igneous carbonatite. The Lac à l'Orignal deposit (∼1069–993 Ma), Canada, in the central Grenville Province, contains a large amount of fluorapatite (≤ 20 %) hosted in oxide-bearing norite-gabbronorite-anorthosite layered intrusions. The deposit is hosted in the Vanel Anorthosite (1080 ± 2 Ma) near the northern border of the Mattawa Anorthosite (1016 ± 2 Ma). The major host rock oxide-apatite-gabbronorite (OAGN) is primarily composed of plagioclase, orthopyroxene, clinopyroxene, fluorapatite, ilmenite, and magnetite. The Al contents of the OAGN orthopyroxene indicate that the magmatic deposit was emplaced at mid-low crustal levels (∼2.0–3.6 kbar) and reverse zoning in the OAGN plagioclase suggests <2.5 kbar of pressure change during their crystallization. An overall increase of REE + Y concentrations in the OAGN fluorapatite with decreasing their fluorapatite contents indicates that the magma went through fractional crystallization. This study suggests that high abundances (ca. > 8 %) of fluorapatite in some OAGN were produced from crystal avalanching after initial crystal settling. Antithetic correlation between the Cl content of fluorapatite and the Mg# [Mg/(Mg + Fe2+)] of coexisting orthopyroxene suggests that phosphate ores with low Cl contents are expected for OAGN that formed at the initial stages of magma crystallization. Therefore, the Mg# of the OAGN orthopyroxene provides an exploration tool for targeting phosphate ore with low Cl content, which is preferred in the production of phosphoric acid, a major intermediate feedstock for the fertilizer and green energy industries. Apatite contents in carbonatite and average P 2 O 5 content in carbonatite melt are generally similar to those of the Lac à l'Orignal OAGN. The average concentrations of REE, and toxic metals, such as Pb, Th, and U, in the OAGN fluorapatite are, however, lower than those in apatite from carbonatite worldwide. Therefore, the apatite of the OAGN appears to be of high quality and more environmentally-friendly as a source of phosphate ore. • Green energy transition requires sustainable sources of phosphate ore. • Massif anorthosites are prospective sources of high-quality phosphate ore. • Lac à l'Orignal phosphate deposit in massif anorthosite, Canada, was investigated. • The Lac à l'Orignal apatite is of high ore quality and environmentally-friendly. • The orthopyroxene Mg# provides an exploration tool for phosphate ore with low Cl. [ABSTRACT FROM AUTHOR]

The deep decarbonization of the power systems is pivotal to the efforts of global energy transition and climate mitigation. The small modular reactor (SMR) is a decarbonized, reliable and secure generating technology that can bring new possibilities for global power-sector transition. However, such a transition involves a variety of complexities even beyond conventional systems. We comprehensively explore the SMR deployment and the decarbonization pathway in a number of diversified power and jurisdictional systems under various complexities associated with multiple variables, objectives, criteria and constraints that have dynamic and interactive relationships. This effort is based on the development of an SMR-embedded multi-region power system management model (SMPM). Using Canada as an example, here we show that SMRs would play different roles in diversified power systems, particularly for fossil-fuel dependent, highly variable renewable energy-penetrated and off-grid. The introduction of SMRs to Canada would result in up to 71% (/48%) emission reduction from 2005 (/2018) level in the country by 2045. Our results would help show the significance of SMRs for supporting the global energy transition. [Display omitted] • An SMPM model is developed to analyze low-carbon power system transition in Canada. • Multiple complexities and uncertainties in power systems are reflected. • SMR development issue is investigated within a power-system optimization framework. • The regional development of Canada is analyzed by a holistic optimization method. • GHG emissions from Canada's power sector would be 48% lower in 2045 than in 2018. [ABSTRACT FROM AUTHOR]

Carbon capture and utilization (CCU) and carbon dioxide removal (CDR) technologies have the potential to significantly contribute to GHG reduction. Numerous studies have evaluated the CO 2 reduction effects and economics of CCUs and CDRs; however, uncertainties in these evaluations due to various regional characterizations and future technological transitions are of high importance. In this study, four synthetic fuels (fuels produced from captured CO 2 and H 2), methanol, methane, gasoline, and diesel, were evaluated by life cycle assessment (LCA) and techno-economic assessment (TEA). Five representative countries with different regional characteristics were selected for the study. A bottom-up integrated LCA/TEA approach was used, involving detailed process simulations to avoid uncertainties and to evaluate future technological transitions based on direct air capture (DAC) and renewable energy. The overarching objective of this study was to provide a transparent framework with a common dataset generation methodology to determine the countries that have the advantages/disadvantages in synthetic fuel production and sale, considering the local operational parameters and large-scale introduction of DAC/renewable energy. Such multiple synthetic fuel analyses across various jurisdictions have not been conducted in previous studies. The results showed that the highest and lowest CO 2 reductions were achieved by diesel (average 6.33 kg-CO 2 ·kg−1) and methanol (average 3.43 kg-CO 2 ·kg−1), respectively, whereas the highest and lowest product costs were of gasoline (average 2.96 USD·kg−1) and methanol (average 0.82 USD·kg−1), respectively. The technological transition using DAC and renewable energy showed average CO 2 emission reductions of 47% (methanol), 99% (methane), 545% (gasoline), and 621% (diesel). Moreover, in the future, the lowest CO 2 emission reduction costs are expected in Germany for methanol and diesel, Australia for methane, and Canada for gasoline. These findings can contribute to improving international collaboration to promote CCU and CDR technologies. • Carbon capture and utilization (CCU) and CO 2 removal (CDR) technologies were evaluated for four representative synthetic fuels. • CO 2 reductions and costs were analyzed for different CCU pathways, scenarios, and countries. • Diesel fuel was found to be the most effective CCU pathway in terms of cost and potential. • Germany and Canada have economical advantage for CCU production, while U.S, has in potential. • Detailed process modeling was combined with cost and GHG emission estimation for multiple jurisdictions. [ABSTRACT FROM AUTHOR]

The global call to address climate change and advance sustainable development has created rapid growth in research, investment, and policymaking regarding the renewable energy transition of Indigenous communities. From a rightsholder perspective, Indigenous Peoples' vision of sustainability, autonomy, and sovereignty should guide research on their energy needs. In this paper, we present a multi-method, inductive examination to identify gaps between Indigenous communities' expressed needs and rights, and the questions researchers and policymakers investigate in energy transition research conducted in the context of Indigenous communities located in Canada. We combine a systematic review of the extant literature, a scoping review of the grey literature on off-grid communities by Indigenous and non-Indigenous governments and non-governmental policy bodies, qualitative primary data collected via fieldwork, and an in-depth study of an Indigenous-led renewable energy transition study conducted by Haíɫzaqv Nation's Climate Action Team. We holistically examine these different perspectives and identify emergent themes to recommend ways to bridge the gaps between off-grid renewable energy research and stated Indigenous community priorities. Specifically, we recommend designing equitable research practices, understanding community worldviews, developing holistic research goals, respecting Indigenous data sovereignty, and sharing or co-developing knowledge with communities to align with community priorities closely. • There is a research-practice gap in Indigenous communities' energy transitions. • We used a multi-method inquiry integrating Indigenous and Western approaches. • Renewable energy literature diverges from the Indigenous community vision and goals. • Indigenous research methods can reduce the research-practice gap in high-tech fields. • Community-based approaches can use traditional laws to yield actionable outcomes. [ABSTRACT FROM AUTHOR]

• Applying a justice in transitions framework to the case study of the Energy Futures Lab. • Operationalizing concepts of environmental justice in transitions projects. • Recommendations for researchers and practitioners for transitions projects. While the concept of 'just transitions' has become more and more prominent in academic and popular discussions of sustainability transition, these conceptions are often framed in purely economic terms, and focus on the economic impact on communities, regions, and nation-states. We argue that a broader conception of justice in transitions, and in particular energy transitions, is required. Questions such as who will win and who will lose as society transitions to more sustainable future, who decides what the transition will look like, how are those historically excluded from decision making recognized, and how are the interests of non-humans and future generations included are important to answer in order to ensure that concepts of justice are included in transitions processes. Answering these questions is critical in "ensuring that system transitions are not only more sustainable, but also more just" (Williams and Doyon, 2019, p. 144). In this paper, we apply the justice and system transition framework (Williams and Doyon, 2019) to the Energy Futures Lab (EFL). We find that while the EFL has made great strides towards justice in transition, the EFL is also a demonstration of the challenges of incorporating justice such as addressing issues of power dynamics and conceptions of diversity and inclusion. We also find that the justice and system transitions framework proves to be a valuable tool in assessing justice in transitions projects. Going beyond the common 'just transition' approach that focuses on distributive justice gives a richer conception of justice and ensures that procedural and recognition approaches are included. [ABSTRACT FROM AUTHOR]

"Community energy" (CE) is argued to be an opportunity to transition to low-carbon energy systems while creating additional benefits for local communities. CE is defined as energy initiatives that place a high degree of emphasis on participation of local community members through ownership and control, where through doing so, benefits are created for the community. The trend has seen considerable growth in many countries over the last decade. Occurring simultaneously is a trend for local communities (e.g. municipalities) to create their own Local Energy Plans (LEPs) – a planning process that articulates energy-related actions (i.e. expected outcomes). While CE and LEPs both address energy activities in a local context, any further connection between these trends remains unclear. This research develops a framework, based on CE and LEP literature, to assess LEPs for their relevance to CE. The research analyses 77 LEPs from across Canada for the ways in which they address the three components that define CE: community participation, community ownership, and community capacity. The main findings are that LEPs have emerged as a process that is both relevant to CE and capable of strategically addressing its components. Despite this, LEPs do not appear to reveal a radically different approach to the "closed and institutional" models of traditional community involvement practices. The investigation suggests that for CE advocates, LEPs may be considered to be an important avenue to pursue CE ambitions. LEPs could increase their relevance to CE by improving the processes and actions related to all three CE components. [ABSTRACT FROM AUTHOR]

This article presents historic energy profiles in order to understand the changing roles of three critical energy flows in eastern Canadian agroecosystems. The first flow is the societally useful energy that farms produced in crops, animal products, and forest resources. This flow stabilized after colonization and then intensified with the introduction of fossil fuel inputs. The second flow consists of these external inputs, including human labor and the energy embodied in machinery, fuel, and fertilizers. The final flow is the biomass from within the agroecosystem itself. Farmers removed this biomass from their final produce and recycled it as feed for animals, seed for crops, and fencing for livestock management. This article presents evidence on these energy flows from a set of case studies in Northeastern North America. Prince Edward Island (PEI) offers a study of energy transitions in a frontier agroecosystem at the farm, township, county, and the bounded provincial scales. This study uses time points from the 1881, 1931, 1951, and 1996 censuses, as well other statistics. The energy in land produce remained stable during the socio-ecological transition because of the importance of forest products. Results at the sub-county scale demonstrate complementary components within the larger provincial system, and the example of one farm (1877-1892) illustrates specialized energy strategies within the advanced organic regime. After the socio-ecological transition, external inputs remained lower than expected, but together with the steady growth of livestock, they ensured that biomass energy inputs were more productive in the mineral regime than they had been in the organic period. [ABSTRACT FROM AUTHOR]

This article presents an energy analysis of Quebec agroecoystems at five periods of time: 1871, 1931, 1951, 1981, and 2011, calculating for each year the various energy flows and their resulting Energy Return on Investment (EROI). In the nineteenth century, Quebec agroecosystems were typical examples of historical organic agriculture, with a low dependence on external Inputs but a high dependence on biomass reused, mainly livestock feed and crop seeds. Following the full industrialization of Quebec agriculture by the 1960s, there have been massive injections of external inputs, but also steadily rising amounts of biomass reused due to livestock specialization and the decoupling of domesticated animals from crop farming. As a result of this transformation, the energy efficiency of agroecosystems diminished, despite the significant increases in both final produce and area productivity that were achieved. [ABSTRACT FROM AUTHOR]

• A call for a new research agenda to more explicitly include justice in transitions. • A review of literature examining how different disciplines have addressed the concept of justice. • An analytical framework and set of recommendations for integrating justice in transition research and practice. This paper argues that transitions research more broadly needs to take more account of justice in its analysis. This paper draws primarily from environmental and energy justice literature to engage with the concept of justice in transitions research, as it seeks justice for people, communities, and the non-human environment from negative environmental impacts. This is achieved through different forms of justice: distributive, procedural, and recognition. Our paper concludes with reflections upon the application of a justice approach to sustainability transitions research and offer insights into a potentially new research agenda. [ABSTRACT FROM AUTHOR]