Article snippet: WASHINGTON (AP) — The Trump administration on Wednesday completed one of its biggest rollbacks of environmental rules, replacing a landmark Obama-era effort that sought to wean the nation’s electrical grid off coal-fired power plants and their climate-damaging pollution. Environmental Protection Agency chief Andrew Wheeler, a former coal industry lobbyist, signed a replacement rule that gives states leeway in deciding whether to require efficiency upgrades at existing coal plants. Wheeler said coal-fired power plants remained essential to the power grid, something that opponents deny. ‘‘Americans want reliable energy that they can afford,’’ he said at a news conference. There’s no denying ‘‘the fact that fossil fuels will continue to be an important part of the mix,’’ he said. Rep. David McKinley, a West Virginia Republican, was one of several coal country lawmakers on hand for the signing. He argued that power from the sun and wind was not yet reliable enough to depend on. ‘‘We’re not ready for renewable energy ... so we need coal.’’ President Donald Trump campaigned partly on a pledge to bring back the coal industry, which has been hit hard by competition from cheaper natural gas and renewable energy. The rule will go into effect shortly after publication in the Federal Register. Environmental groups pledge court challenges. ‘‘The Trump administration’s outrageous Dirty Power Scam is a stunning giveaway to big polluters, giving dirty special interests the gree... Link to the full article to read more