For nearly 20 years, the EPA has regulated greenhouse gases. No more.

Last week, the Trump administration announced it was repealing a 2009 determination called the endangerment finding. That finding had been the basis by which the EPA had assumed the right to regulate greenhouse gases for nearly 20 years. How will its repeal impact Americans and is the Supreme Court likely to join this heated debate? Michael Gerrard, a law professor at Columbia University, joins The Excerpt to share his insights regarding the legal, political and scientific issues at play.

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Episode transcript available here. 

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