1. (2016) US Energy Information Administration. Electric power monthly
2. https://www.epa.gov/naaqs
3. https://gispub.epa.gov/air/trendsreport/2016/
4. Power plant emission trends. https://www3.epa.gov/airmarkets/progress/datatrends/index.html
5. Mitchell JFB (1989) The “Greenhouse” effect and climate change. Am Geophys Union 27(1):115–139. Washington, DC