EPA has revoked the Biden-era rule limiting greenhouse gas emissions from power plants. The agency says the repeal will save industry more than $300 billion in compliance costs and support domestic energy production. Opponents argue the Clean Air Act gives EPA authority to regulate carbon dioxide, and that removing the rule leaves the power sector without a clear federal emissions standard. Utilities and investors now face another round of regulatory uncertainty. State-level carbon rules and existing market pressures will keep shaping decisions on coal retirements, gas plants, and renewables, but a federal backstop is gone for now. The legal and political fight over CO2 regulation is likely to continue under the Clean Air Act, regardless of this rule change.
