Climate change could expose 100 million Americans to unhealthy summer air by 2100, turning smog alerts into a regular health ...

Protecting them requires international cooperation to address the issues that affect them. Southern Resident killer ...

For such a wild and beautiful state, North Carolina is a surprisingly risky place to be a rare animal or plant. From misty ...

The agency is moving toward resurrecting a proposal from the first Trump administration to ditch Clean Air Act regulations.