Trump Administration Rolls Back Mercury Emissions Limits for Coal Plants

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The Trump administration has loosened limits on the amount of mercury and other toxic emissions that coal-fired power plants can release into the environment. This reversal of Obama-era regulations is intended to lower costs for the energy industry, but environmental groups warn it could have serious public health consequences, especially for children living near coal plants.

Why it matters

The rollback of mercury emissions limits is part of the Trump administration's broader efforts to prioritize the interests of the fossil fuel industry over environmental protection and public health concerns. Critics argue this decision places corporate profits ahead of the wellbeing of communities living near coal facilities, who face increased exposure to harmful pollutants.

The details

The Environmental Protection Agency has rescinded rules that previously limited the amount of mercury, arsenic, and other toxins that coal-fired power plants could release. The agency claims this will reduce the cost of generating baseload power and improve reliability for consumers. However, studies have shown that exposure to these emissions can harm brain development in young children and cause other respiratory and cardiovascular problems in adults.

• In 2019, the Trump administration first proposed rolling back the Obama-era mercury emissions limits.
• The EPA finalized the rule change in February 2026.

What’s next

Environmental groups are expected to challenge the EPA's decision in court, arguing the rollback of mercury emissions limits violates the Clean Air Act and puts public health at risk.