President Donald Trump has signed four executive orders aimed at boosting coal, a reliable but polluting energy source that’s long been in decline.

Massachusetts U.S. Sen. Ed Markey, who is a member of the Senate Environment and Public Works Committee, called out U.S. President Donald Trump's decision to sign four executive orders boosting the coal industry on Tuesday. “Just like Trump, coal is outdated, costly, and dangerous,” Markey said in a statement on Tuesday.

President Trump signed four executive orders boosting the coal industry by rolling back efforts to curb a source of energy that's a major pollutant.