Las Vegas Sun

October 24, 2014

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In this March 8, 2014, file photo steam from the Jeffrey Energy Center coal-fired power plant is silhouetted against the setting sun near St. Marys, Kan. As President Barack Obama prepares to announce tougher new air quality standards affecting coal-fired power plants, lawmakers in about a half-dozen state already have acted pre-emptively. Not to toughen their own standards, but to make it tougher to enforce the new federal ones.

Charlie Riedel / AP File

In this March 8, 2014, file photo steam from the Jeffrey Energy Center coal-fired power plant is silhouetted against the setting sun near St. Marys, Kan. As President Barack Obama prepares to announce tougher new air quality standards affecting coal-fired power plants, lawmakers in about a half-dozen state already have acted pre-emptively. Not to toughen their own standards, but to make it tougher to enforce the new federal ones.