Environmentalists warn that offshore drilling pollutes oceans and harms marine life. then there was this in march, the president signed an executive order approving construction for the keystone xl pipeline. native american tribes and environmental advocates have long protested that the pipeline over land rights and concerns about effects on wildlife and water supplies if they are polluted. okay. then we've got 2018, the trump administration rolled back another obama era rule, lifting restrictions on greenhouse gas emissions from coal power plants. this move the epa administrator andrew wheele...