The head of the Environmental Protection Agency moved to repeal a landmark environmental decision to regulate greenhouse gas emissions and fight climate change.

Environmental Protection Agency Administrator Lee Zeldin has revoked the Endangerment Finding – the 2009 scientific declaration that formed the legal basis for the federal government to regulate emissions.

WASHINGTON (AP) — President Donald Trump’s administration on Tuesday proposed revoking a scientific finding that has long been the central basis for U.S. action to regulate greenhouse gas emissions and fight climate change.