The EPA formally repealed the 2009 endangerment finding that greenhouse gases are a pollutant that threaten public health.

The federal government is walking away from its tailpipe emissions rules, sparking a legal debate over whether states can now ...

A group of environmental organizations filed suit against the Environmental Protection Agency Wednesday for cutting rules to lower tailpipe pollution.

As President Donald Trump prepares to deliver his State of the Union address, experts are calling the administration’s repeal ...

The Center for Biological Diversity and a broad coalition of health and environmental groups sued the Trump administration today over its rollback of the landmark scientific finding that forms the ...

Carmakers now have leeway to build vehicles for U.S. drivers that spew more greenhouse gases. Yet the global shift toward electric cars and trucks means that approach carries more risk than it would ...

The E.P.A.’s killing of the “endangerment finding” caps a year of deregulation that is likely to make cars thirstier for gas and less competitive globally, experts say.

OTTAWA--Canada is ditching its electric-vehicle sales mandate and replacing it with more stringent tailpipe-emissions standards for automobiles that officials project will spur carbon reduction equal ...

President Trump’s Environmental Protection Agency today formally proposed gutting tailpipe pollution standards and rescinding the “endangerment finding” — the landmark scientific finding that ...