The United States Environmental Protection Agency (EPA) has begun regulating existing stationary sources of greenhouse gases (GHG) using its authority under the Clean Air Act (the Act). The regulatory process under the Act is long and involved and raises the prospect that significant U.S. action...

The political accord struck by world leaders at the United Nations negotiations in Copenhagen in December 2009 allows participating countries to express their greenhouse gas commitments in a variety of ways. For example, developed countries promised different percent emissions reductions...

The Doha climate talks in December 2012, wrapped up lines of negotiation that were begun years before in Bali. Negotiators resolved contentious questions about the future of the Kyoto Protocol and finally put the constraints of the Bali agenda behind them. Now they need turn to developing by...

Under reasonable assumptions, China could achieve parity in living standard with Western Europe by 2100, and India by 2150. Climate change, however, may be a key obstacle preventing such a convergence. The business-as-usual (BAU) growth path of the world economy might increase concentrations of...