The E.P.A. said this week it would revoke its own ability to fight climate change. It’s the latest move in an extraordinary pivot away from science-based protections.

President Trump took his most consequential step yet to derail federal climate efforts.

The E.P.A. said this week it would revoke its own ability to fight climate change. It’s the latest move in an extraordinary pivot away from science-based protections.

If finalized, the move would escalate the Trump administration’s efforts to claw back billions of dollars in climate grants awarded under President Biden.