"The head of the United Mine Workers of America (UMWA) said his union will sue the Environmental Protection Agency (EPA) over two rules designed to cut greenhouse gas emissions at power plants once the Obama administration finalizes them.

"These regulations come on top of decades of clean air and clean water regulations coming out of Washington that have already changed our industry and our communities," UMWA president Cecil Roberts said at a union gather in Morgantown, W.Va. on Wednesday.

'As we stand here today, I assure that our lawyers are preparing to sue the agency again once the Clean Power Plan and New Source rule become final,' he said."

Devin Henry reports for The Hill June 3, 2015. [2]