With 7 of its ambitious rules for cars, trucks and trains repealed, California officials must find new ways to clean up the nation’s worst air pollution. But officials face growing pushback about ...

Ohio’s new budget kills a decades-old rule that gives neighbors of industrial scale air polluters powers to sue over threats ...

U.S. Attorney's Office in Pittsburgh asks judge to let Erie Coke plant superintendent enter pretrial diversion program and no ...

The US Environmental Protection Agency (EPA) plans to abandon landmark regulations limiting airborne mercury and greenhouse ...

The U.S. Supreme Court dealt a blow to ExxonMobil by refusing to hear an appeal to overturn a lower court decision that ...

The oil major repeatedly appealed its $14.25 million civil penalty from a 2010 lawsuit that alleged repeated Clean Air Act violations at its Baytown complex.