EPA to revoke "endangerment finding," landmark basis for regulating greenhouse gases

The Environmental Protection Agency has decided to revoke a key scientific finding it published 16 years ago that six greenhouse gases are a threat to public health and must be regulated under the Clean Air Act.

Known as the "endangerment finding," it is the 2009 scientific basis for which the EPA has regulated greenhouse gas emissions from new motor vehicles, as well as other sources of climate pollution, but Administrator Lee Zeldin announced on a conservative podcast Tuesday that the agency is revoking the finding, calling it, "the largest deregulatory action in the history of America."

Since it was signed by then-Administrator Lisa Jackson in 2009, the finding has been used by the EPA to regulate sources of climate change-causing pollution from cars, power plants and other sources of transportation like planes, as well as oil and gas operations.

During his appearance on the "Ruthless Podcast," Zeldin criticized the endangerment finding, saying it put too many regulatory restrictions on transportation and stationary sources of greenhouse gas pollution. 

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