The U.S. Geological Survey released an assessment on June 26 finding that the United States can store between 2,400 and 3,700 gigatons CO2 in underground basins, around 500 times the amount of CO2 the country emitted from energy related sources in 2011. The report found that the regions with the largest sequestration potential are the Coastal Plains region, which could store 2,000 metric gigatons, the Alaska region, the Rocky Mountain region, and the Northern Great Plains region.