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.
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More
