Trump Administration
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New Report on U.S. Climate Litigation in the Age of Trump
The new white paper takes stock of 378 U.S. climate cases that responded or interacted with federal policy and law during the Trump administration.
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Michael Regan and the Reconstruction of the U.S. EPA
The next four years should undo the damage of the past four years and put America back on the path of effective environmental policy.

Congratulations to our Columbia Climate School Class of 2026 and all of our 2026 Columbia University graduates! Learn more about our May 15 Climate School Class Day celebration. 💙 #Columbia2026 #ColumbiaClimate2026
