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.

The Trump administration on Tuesday proposed to repeal a 2009 landmark finding that greenhouse gases pose a threat to the public. The “endangerment finding” came after the Supreme Court ruled in 2007 that the Environmental Protection Agency (EPA) can regulate greenhouse gases (GHG) if it determines that they harm Americans’ well-being.

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