In a split decision announced earlier today (Utility Air Regulatory Group v. Environmental Protection Agency, No. 12-1146, slip op. (June 23, 2014)) the United States Supreme Court ruled the Environmental Protection Agency exceeded its authority in requiring sources of air pollution to comply with the Clean Air Act’s prevention of significant deterioration (PSD)

The Obama Administration is targeting emissions of greenhouse gases (GHGs), particularly methane, from the agricultural industry as a component of its recently announced Climate Action Plan – a Strategy to Reduce Methane Emissions.  According to EPA’s inventory of GHG emissions, the sources of U.S. anthropogenic emissions of methane include 25% from enteric fermentation