In this July 27, 2018, file photo, the Dave Johnson coal-fired power plant is silhouetted against the morning sun in Glenrock, Wyo. The Trump administration is close to completing one of the biggest of its dozens of rollbacks of environmental rules, replacing a landmark effort to wean the nation’s electrical grid off coal-fired power plants and their climate-changing smokestack emissions. (AP Photo/J. David Ake)
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