Political Science

Libertarian/Conservative Think Tanks​​​

• The Frontier Centre for Public Policy promotes "smart green" or "market-oriented environment policy" in such areas as climate, energy, environment, transportation and smart growth. 
• The Heartland Institute "is one of the world’s leading free-market think tanks" the mission of which is "to discover, develop, and promote free-market solutions to social and economic problems." Topics include climate change; energy; and transportation.
• The Reason Foundation "advances a free society by developing, applying, and promoting libertarian principles, including individual liberty, free markets, and the rule of law." Website highlights major policy areas including energy, the environment; mass transit; as well as urban growth and land use.

Centrist

• Urban Design Lab (Earth Institute at Columbia University). 
• International Research Institute for Climate and Society -  (Earth Institute at Columbia University).

Left/Progressive Think Tanks

• The Canadian Centre for Policy Alternatives - has a Climate Justice Project
• Canadian Urban Institute brings together "policymakers, urban professionals, civic and business leaders, community activists and academics" to "learn, share and collaborate with one another from coast to coast to coast."
• The Center for American Progress - includes a focus on Energy and Environment
• The Victoria Transport Policy Institute produces research promoting public transportation.