In total there were 6,702 million metric tons of U.S. greenhouse gas emissions in 2011. The plurality of greenhouse gas emissions were generated by electricity production (33%). The transportation sector was also responsible for a large amount of emissions (28%).
In total there were 6,702 million metric tons of U.S. greenhouse gas emissions in 2011. The plurality of greenhouse gas emissions were generated by electricity production (33%). The transportation sector was also responsible for a large amount of emissions (28%).