President Joe Biden has announced a ban on new offshore oil and gas drilling along most of America's coastline.
The ban covers the entire Atlantic coast and eastern Gulf of Mexico, as well as the Pacific coast off California, Oregon and Washington and a section of the Bering Sea off Alaska.
The decision is one of the last climate policy actions by the Biden administration before Donald Trump returns to the White House later this month.
Announcing the new drilling ban, Biden said: "My decision reflects what coastal communities, businesses, and beachgoers have known for a long time: that drilling off these coasts could cause irreversible damage to places we hold dear and is unnecessary to meet our nation's energy needs."
In a radio interview, Trump branded the ban "ridiculous" and vowed to revoke the ban.
"I'll unban it immediately," he said. "I have the right to unban it immediately."
Donald Trump has previously said he will reverse Biden's climate change policies.