EPA Administrator Lee Zeldin said he plans to roll back 31 key environmental rules on everything from clean air to climate change.

The Trump administration is moving forward with what EPA Administrator Lee Zeldin calls the "largest deregulatory action in U.S. history," aiming to undo 31 environmental regulations. The changes include reconsidering greenhouse gas dangers,

Environmental protections rolled back Fifty-five years after the Nixon administration created the Environmental Protection Agency, the Trump administration is changing the agency’s priorities. It's a move critics say will worsen the environment for all Americans.

In a barrage of pronouncements Wednesday, the Trump administration said it would repeal dozens of the nation’s most significant environmental regulations. EPA Administrator Lee Zeldin described it as "the greatest day of deregulation our nation has seen.

The bipartisan trio branded the Trump administration's rollback plans as a stark departure from the agency's mission.

ABC News’ Stephanie Ramos talks to former EPA Administrator Gina McCarthy on the Trump administration’s rollback of clean air and water protections.

EPA Administrator Lee Zeldin outlined an aggressive plan to dismantle the "holy grail" of climate regulation, the endangerment finding

The Environmental Protection Agency has signaled that it will slash several regulations aimed at cutting pollution and mitigating climate change.