Department of Transportation Secretary Sean Duffy has only been in his post for a day and already making it clear that the agency will be ignoring the role vehicle pollution plays in worsening climate change.

The order is the latest Trump administration effort against Biden-era initiatives that intended to promote electric vehicles and reduce greenhouse gas emissions.

Newly appointed US Transportation Secretary Sean Duffy ordered a rewrite of more stringent US fuel-economy rules, following through on one of President Donald Trump’s first directives after he retook the White House.

In his first act in office, new Trump Transportation Secretary Sean Duffy signed a memorandum directing the agency to review former President Joe Biden’s fuel economy standards, which aim to reduce vehicle emissions.

Transportation Secretary Sean Duffy on Tuesday began the process of rolling back fuel economy standards set by the Biden administration that he said “put coercive pressure” on automakers to phase out gasoline-powered vehicles.

Sean Duffy was sworn in as the new Secretary of the U.S. Department of Transportation on Tuesday and one of his first acts in office was to sign a memorandum that begins the process of reducing automotive fuel efficiency standards enacted under the Biden administration.