The course begins with an overview of the science and economics of climate change. We then explore mitigation policies and strategies used at local, national, and international levels, including carbon pricing mechanisms, regulation, finance and incentives, litigation, financial disclosure, and international cooperation. We investigate their effectiveness, social and economic dimensions, political dynamics, and implications for equity and environmental justice. We bring these perspectives to bear on ongoing policy developments, such as the upcoming launch of Washington State’s ambitious cap-and-trade program and global assessment of the adequacy of national commitments under the Paris Agreement.