Trump Administration Moves to Rollback Clean Air Regulations, Advocates Warn of Health Impacts

Environmental groups say the repeal will increase dangerous pollution levels in Maryland and the Chesapeake Bay region.

Published on Feb. 27, 2026

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Environmental advocates are warning that the Trump administration's plan to roll back the Environmental Protection Agency's mercury and clean-air standards will allow coal companies to pump more pollutants into the air, harming the health of Marylanders. The advocates argue the move prioritizes coal company profits over public health, especially for vulnerable populations like infants and children.

Why it matters

The rollback of these clean air regulations would undo progress made in reducing dangerous pollutants like mercury, lead, and arsenic that can cause brain damage, cancer, and other serious health issues. This would disproportionately impact Maryland residents, as pollution from out-of-state coal plants often ends up in the Chesapeake Bay and contaminates the region's seafood.

The details

In 2024, the Biden administration had moved to enhance the Obama-era clean air standards after many coal power plants were able to meet them at low cost. However, the Trump administration now plans to repeal those 2024 changes, which the Sierra Club says would result in 50% more mercury pollution. Environmental groups argue this action solely benefits the profits of coal companies, while putting public health at risk.

  • In 2024, the Biden administration enhanced the Obama-era clean air standards.
  • The Trump administration is now moving to repeal the 2024 clean air standard enhancements.

The players

Sierra Club

An environmental advocacy organization that has warned about the health impacts of the Trump administration's plan to roll back clean air regulations.

Patrick Drupp

The director of climate policy at the Sierra Club, who has spoken out against the proposed rollback.

Trump administration

The current presidential administration that is moving to repeal the enhanced clean air standards put in place in 2024.

Biden administration

The previous presidential administration that had moved to enhance the Obama-era clean air standards in 2024.

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What they’re saying

“Increasing dangerous pollution like mercury, lead, arsenic, causes brain damage in babies, infants, fetuses. They cause cancer. Then you've got these acid gases that cause cardiovascular and lung diseases, so really, this action doesn't benefit anyone – except the coal companies that are trying to cut corners while everyone else is suffering.”

— Patrick Drupp, Director of Climate Policy, Sierra Club (Public News Service)

The takeaway

This rollback of clean air regulations prioritizes the profits of coal companies over the health and wellbeing of Maryland residents, especially vulnerable populations like infants and children. It threatens to undo progress made in reducing dangerous pollutants that contaminate the Chesapeake Bay region and put lives at risk.