U.S. emissions of greenhouse gases in 2004 totaled 7,122.1 million metric tons carbon dioxide equivalent (MMTCO2e), 2.0 percent more than in 2003
(6,983.2 MMTCO2e). U.S. greenhouse gas emissions in 2004 were 16 percent higher than the 1990 emissions level, there is an average annual increase of 1.1 percent over the period.
The nation is looking everyday for many answers to global warming. But sad to say that's the world leader contributed much to global warming.
