Overview

• The EPA proposal would repeal its 2009 endangerment finding, the legal basis for more than $1 trillion in regulations targeting emissions from vehicles, power plants, and oil and gas operations.
• A newly released Department of Energy report by five climate-skeptic scientists challenges prevailing climate change assumptions to bolster the agency’s rationale.
• Industry groups warn that revoking the finding would create regulatory uncertainty and disrupt long-term planning and compliance efforts.
• Environmental groups warn that repealing the finding would weaken air quality protections and jeopardize public health, and they have pledged legal challenges likely to run through 2027–2028.
• The public comment period ends September 21, with the EPA aiming to finalize the repeal by December.