Climate Central: Coal production in the U.S. has dropped to its lowest level in 30 years thanks in part to low natural gas prices and climate policies encouraging utilities to switch to natural gas to generate electricity.
It was 1986 when coal production in the U.S. was as low as it is today, according to U.S. Energy Information Administration data released Friday. Coal is the largest single source of greenhouse gas emissions driving climate change. Burning natural gas to generate electricity emits about half...