Trump administration rolls back Obama-era fuel efficiency standards

The Trump administration on Tuesday rolled back an Obama-era law that pushes automakers to produce more fuel efficient vehicles, severely limiting a rule designed to decrease pollution from transportation in the face of climate change.

The new rule cuts the year-over-year improvements expected from the auto industry, slashing standards that require automakers to produce fleets that average nearly 55 miles per gallon (mpg) by 2025. Instead, the Trump rule would bring that number down to about 40 mpg by 2026, bringing mileage below what automakers have said is possible for them to achieve.