Mining Firm’s Suit Over MATS Cost Finding Creates Jeopardy For Air Rule

A coal mining firm is suing EPA over its just-published final rule scrapping the cost-benefit review underpinning the Obama administration’s landmark mercury and air toxics standards (MATS), a lawsuit that environmentalists and others predicted would be filed and that places the fate of the overall utility emissions regulation in jeopardy. The May 22 suit from Westmoreland Mining Holdings appears to be the first quickly filed over EPA’s supplemental cost finding, in which the agency found it is not “appropriate and...