Developing a Climate Change Mitigation Policy Inventory for Canada.

This article presents the development of a comprehensive and dynamic inventory of 341 climate change mitigation policies implemented or proposed across federal, provincial, and territorial governments in Canada. The inventory categorizes policies by jurisdiction, economic sector, policy instrument type (mandatory, abatement support, indirect), abatement channel, and scope, providing a detailed overview of the diverse and overlapping climate policy landscape shaped by varying regional economic structures and political contexts. Findings indicate that abatement support policies, which provide financial incentives for low-carbon technologies, constitute the majority (71%) of policies, while broad-based mandatory policies are fewer but likely more impactful on emissions reductions. The inventory aims to support researchers and policy-makers by clarifying policy design and coverage, though it acknowledges limitations such as incomplete funding data and challenges in measuring policy stringency and emissions coverage. Future research priorities include enhancing temporal resolution, assessing policy impacts on equity-deserving groups, and developing metrics for policy stringency and coverage.