"Several environmental and health groups are moving to protect a new rule limiting ozone levels against a lawsuit.

Earthjustice filed court papers on Tuesday supporting the Environmental Protection Agency’s (EPA) new ozone standards in a case brought by a coal company opposed to the rule.

Murray Energy Corp. sued over the ozone limits in October, arguing the rule will be expensive to implement and damage coal industry jobs."

Devin Henry reports for The Hill November 24, 2015. [2]