Trump revokes landmark ruling that greenhouse gases endanger public health

The White House calls it the largest deregulation in US history, but environmentalists say it will prove costly for Americans.

​Trump revokes landmark ruling that greenhouse gases endanger public health The White House calls it the largest deregulation in US history, but environmentalists say it will prove costly for Americans. The White House calls it the largest deregulation in US history, but environmentalists say it will prove costly for Americans.