U.S. energy-related CO2 emissions fell slightly in 2017

U.S. energy-related carbon dioxide (CO2) emissions in 2017 fell to 5.14 billion metric tons, 0.9% lower than their 2016 levels, and coal emissions were the primary driver behind the decline. U.S. energy-related CO2 emissions have declined in 7 of the past 10 years, and they are now 14% lower than in 2005. More »