This article explains why states and localities need to be full partners in a national climate change effort based on federal legislation or the existing Clean Air Act. A large share of reductions with the lowest cost and the greatest co-benefits (e.g., job creation, technology development,...

This article explains why policy makers should seriously consider substantial early reductions in greenhouse gas emissions as a part of any post-Kyoto framework, and sets out suggested elements of a framework for early action in a post-Kyoto agreement. Substantial early reductions are needed...

This Debate in Print concentrates on the U.S. energy system and asks, How should public policy move forward to promote the decarbonization of the American economy? And what blend of law, economics, science, and technology will get the job done?