The Trump administration has revoked a foundational Obama-era scientific determination that provides the legal foundation for federal greenhouse gas regulations. This move marks one of the broadest reversals in U.S. climate policy to date.
Targeting the 2009 Endangerment Finding
Officials specifically reversed the 2009 endangerment finding, which established that greenhouse gas emissions endanger public health and welfare. This finding had enabled the Environmental Protection Agency to implement various climate-related rules.
Analysis indicates this action could reshape federal approaches to emissions control, prompting discussions on future regulatory frameworks and potential legal challenges.

