The party-line vote marked the first time in the 55-year history of the Clean Air Act that Congress has moved to weaken the ...

If also passed by the House as expected, the action will be the first time Congress has weakened protections under the Clean ...

Utah counties are struggling when it comes to clean air, according to a new report from the American Lung Association and ...

A study published by researchers at the University at Albany has presented the first documented evidence that Adirondack ...

California has agreed to formally repeal much of its controversial Advanced Clean Fleets electric-truck mandate as part of a ...

Lawmakers voted to stop the state from requiring that an increasing share of new trucks sold there have zero emissions.

Republicans say the U.S. Environmental Protection Agency was wrong to reinstate the state's air pollution lawsuit policy ...

Gov. Gavin Newsom issued a statement in response to the House vote that targeted California’s clean vehicles program, stating that the Republican-controlled House illegally used the ...

Colorado is now in severe violation of two federal ozone pollution standards, and it must find a way to reduce that pollution ...

The U.S. EPA said it will fine a Burns Harbor steel mill slag processor $190,000 in a settlement for federal Clean Air Act violations.