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...

In this paper, we use a multi-region model of the world economy to analyze the economic and environmental outcomes that are likely to result from Paris Climate Agreement. To construct the modeling scenario, we convert the disparate emission targets for each country or region in their Nationally...