U.S. greenhouse gas emissions dropped 3.4% in 2012

Greenhouse gas emissions in the United States dropped by 3.4% in 2012, federal environmental regulators reported Tuesday.

The decline over the previous year was driven mostly by power plant operators switching from coal to natural gas, improvements in fuel efficiency for transportation and a warmer winter that cut demand for heating, according to an inventory released by the U.S. Environmental Protection Agency.

The analysis shows the nation released the equivalent of 6,526 million metric tons of carbon dioxide in 2012, the lowest level since 1994.

Read full text in the LA Times