The EPA administrator says he is rolling back dozens of environmental rules, including those crucial to California programs on climate change and electric vehicles, and closing offices that worked to lower pollution in poor communities.

The Trump administration announced a wave of regulatory rollbacks on Wednesday including a repeal of Biden-era emissions limits on power plants and automobiles, as well as reduced protections for waterways.

The Environmental Protection Agency announced on Wednesday it plans to reconsider a Biden administration regulation that sought to reduce greenhouse gas emissions from power plants, part of the new administration's broader efforts to unwind regulations for the power sector.

On a day featuring a blitz of environmental regulatory actions, the EPA on Wednesday announced two particularly sweeping climate change moves. Why it matters: The moves reveal the administration's strategy to "revisit" or "revise" both the social cost of carbon as well as the 16-year-old endangerment finding.