Why are cites particularly vulnerable to the effects of climate change? On whom do those effects fall? What role can cites play in reducing global warming? What social groups and institutions are most critical for governing the future of cites in a warming world? We discover how cites and urbanization have been understood in relationship to a warming world in public policy and the social sciences. This includes a focus on the causes and consequences of climate change on cities, including strategies for adaptation and mitigation. We analyze the governing institutions (global, national, and local), policies, movements, and financial architectures that shape how cities address climate change today. This course has a transnational scope, across the Global North and Global South.