In a long-expected move the EPA signaled this week it would reexamine Biden-era emissions rules, in what was a very busy week for deregulation.

The EPA's rules put the fleetwide light-duty limit at 170 grams of carbon dioxide per mile for 2027 down to 85 grams in 2032. They don't specify any requirements for a particular type of propulsion system, but automotive executives have said EVs will be needed to comply.

The agency announced Wednesday that it will begin the process of dismantling dozens of Biden-era rules for electric vehicles, power plants, clean water and more.

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.

A Harvard environmental law expert said the blitz of rollbacks the EPA announced is a "shock and awe routine," and rule changes will face a tough legal path.

The head of the Environmental Protection Agency has announced a series of actions to roll back landmark environmental regulations, including rules on pollution from coal-fired power plants, climate change and electric vehicles.

The Environmental Protection Agency announced this week that it’s starting the process of undoing 31 environmental regulations, including a ruling that’s foundational to US climate policy. But undoing any regulation is a cumbersome process,