CHARLESTON, W.Va. (AP) — The U.S. coal industry has been in a steep decline for decades, and President Donald Trump’s administration has proposed several changes that would affect it. He’s issued executive orders to allow mining on federal land. He’s used his emergency authority to allow some older coal-fired power plants set for retirement to keep producing electricity to meet rising demand. Trump has granted nearly 70 older coal-fired power plants a two-year exemption from federal requirements to reduce toxic chemical emissions. And Trump’s government efficiency team plans to terminate the leases of 34 offices within the Mine Safety and Health Administration, which enforces mine safety laws.