1. FACT SHEET: U.S. reports its 2025 emissions target to the UNFCCC;The White House, Office of the Press Secretary,2015
2. Clean power plan for existing power plants;Enviornmental Protection Agency,2015
3. Carbon pollution emission guidelines for existing stationary sources: electric utility generating units; final rule;EPA,2015
4. Overview of greenhouse gases carbon dioxide emissions;Environmental Protection Agency,2015
5. Technical support document (TSD) for the CAA section 111(d) emission guidelines for existing power plants;EPA,2014