The Environmental Protection Agency (EPA) Greenhouse Gas Reporting Program released data for the calendar year 2010. The 6 greenhouse gases required to be reported consist of carbon dioxide, methane, nitrous oxide, and the fluorinated gases PFC-14, PFC-116 and HFC-23. In the United States, carbon dioxide accounted for 95% of the greenhouse gas emissions, methane accounted for 4% and nitrous oxide and fluorinated gases 1%.
