Reprising Massachusetts, States May Face Standing Test In GHG Risk Suit

October 30, 2025
Upcoming litigation over EPA’s planned repeal of its greenhouse gas endangerment finding will test states’ standing to sue over climate measures, warns the head of an academic group working with states to promote strong environmental policies, potentially reprising arguments in the Supreme Court’s Massachusetts v. EPA case. In the 2007 decision in Massachusetts , which directed EPA to consider regulating GHG emissions under the Clean Air Act for the first time, the high court also concluded Massachusetts had standing...


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