A federal appeals court ruled Wednesday to essentially axe an Obama-era rule that prohibited new leasing for coal mining on federal lands. The U.S. Court of Appeals for the Ninth Circuit overturned a previous 2022 court decision that allowed for the reinstatement of an Obama-era regulation that banned new coal mining leases on federally-controlled lands. The 2022 decision overturned Wednesday found that the Trump administration did not conduct an adequate environmental review when it decided to axe the Obama regulation, but the appellate court determined that the case is now moot because the B…