The U.S. Environmental Protection Agency plans to repeal all greenhouse gas emission standards for light-duty, medium-duty, and heavy-duty vehicles and engines in the coming days after it removes the scientific finding that justified those rules,

The Trump administration wants to reverse a 2009 EPA finding that greenhouse gases endanger people. The finding is the basis for much of the United States' climate change regulations.

Donald Trump is coming for the “ holy grail ” of climate regulations. As multiple media outlets reported this week, the administration plans to roll back the “ endangerment finding ,” an Obama-era Environmental Protection Agency decision at the center of the government’s ability to address climate change.