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Clean Air Act

EPA authorities under the Clean Air Act

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Jan 10, 2026
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How did court rulings alter the fate of the Clean Power Plan and its Trump-era replacements?

Two rounds of high-stakes litigation — a 2016 Supreme Court stay and the Supreme Court’s 2022 decision in West Virginia v. EPA — effectively prevented the Obama-era Clean Power Plan (CPP) from ever ta...

Jan 23, 2026

What are the legal limits on private solar geoengineering experiments in the United States?

operate in a fragmented legal gray zone: no single federal statute expressly authorizes or comprehensively regulates outdoor SRM testing, but a patchwork of existing laws and agency authorities—most n...