http://thinkprogress.org/climate/2013/02/08/1561571/oil-gas-number-two/
Reporting for the first time on GHGs from petroleum and natural gas systems, the EPA this week said that the oil and gas sector ranked second in emissions to power plants, releasing 225 million metric tons of carbon dioxide equivalent in 2011. More than a third of that came from methane, the main constituent of natural gas, and a far more potent global warming gas than carbon dioxide.
WITH LINK to the referenced EPA REPORT
http://www.epa.gov/ghgreporting/ghgdata/index.html
PRESS RELEASE
WASHINGTON– Today, the Environmental Protection Agency (EPA) posted the second year of greenhouse gas (GHGs) emissions data on its website, which provides public access to emissions data by sector, by greenhouse gas, and by geographic region such as county or state.Greenhouse gases are the primary driver of climate change, which can lead to hotter, longer heat waves that threaten the health of the sick, poor or elderly; increases in ground-level ozone pollution linked to asthma and other respiratory illnesses; as well as other threats to the health and welfare of Americans.