EPA Move to Revoke Power Plant Climate Limits

The US Environmental Protection Agency is set to announce that it will no longer limit greenhouse gas emissions from power plants burning coal and natural gas. This decision, expected to be made public Monday, completes the current administration's effort to repeal the most significant climate policies enacted under previous presidencies. The move targets the power sector, which remains the second-largest source of carbon dioxide in the United States.

EPA Administrator Lee Zeldin is scheduled to present the change during a Group of 20 energy ministers meeting in Houston. The proposal relies on a legal argument that greenhouse gases from these facilities do not endanger public health or the environment. If upheld by courts, this interpretation would remove the agency's statutory authority to regulate these emissions under the Clean Air Act, effectively blocking future administrations from reinstating similar restrictions.

Legal Strategy Removes Regulatory Authority

The agency plans to argue that it lacks the legal basis to control these specific pollutants. This approach goes beyond merely loosening current standards; it seeks to eliminate the foundational scientific determination that granted the EPA the power to create climate rules in the first place. The administration has already repealed this determination earlier in the year, setting the stage for this broader deregulation of the industrial sector.

Carrie Jenks, executive director of the Environmental and Energy Law Program at Harvard Law School, described the move as an attempt to permanently prevent any future government from regulating one of the nation's largest emission sources. While the new rules would still apply to limits on mercury and arsenic, the EPA has already loosened restrictions on mercury emissions. The primary focus now is on carbon dioxide and other heat-trapping gases that accumulate in the atmosphere and drive extreme weather events.

Sector Impact and Energy Demand

The power industry accounts for a significant portion of the country's total carbon output. If treated as a standalone nation, the US power sector would rank as the fifth-largest climate polluter globally, trailing only China, the entire United States, India, and Russia. The deregulation aligns with broader administration goals to reduce production costs for fossil fuels, particularly as demand for electricity grows to support artificial intelligence data centers.

Critics, including the Natural Resources Defense Council, argue that the agency is abandoning its responsibility to address climate pollution. Manish Bapna, president of the group, stated that the move ends the EPA's legal and moral duty to limit these emissions. The proposal has been in development since last spring and follows earlier actions that eliminated greenhouse gas standards for vehicle tailpipes and eased restrictions on refrigerants.

Regulatory Context and Precedent

The Biden administration finalized climate rules for power plants in 2024, requiring coal plants to install carbon capture technology and limiting emissions from future gas plants. The current proposal reverses these requirements, prioritizing lower operational costs for utility companies. The EPA did not immediately respond to requests for comment regarding the specific legal arguments it plans to present. This action is part of a systematic dismantling of environmental protections that oil, gas, and coal industry participants have long criticized as costly.