Anthropogenic US greenhouse gas emissions (GHG) amounted to a CO2-equivalent 6,702.3 million metric tons in 2011, down 1.6 percent from 2010 and 6.9 percent below 2005 levels.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/us-greenhouse-gas-emissions-are-down
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/environment-news-network
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-intensity
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coal
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydroelectricity
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fuel-efficiency
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fossil-fuels