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Trump exempts coal plants from mercury and air toxics limitations

According to the Environmental Protection Agency's list published on Tuesday, the Trump administration has granted exemptions to 47 companies for two years from regulations that limit mercury and air pollutants in their coal-fired plants.

The list of exemptions is the latest attempt by the administration to use emergency or executive orders to shield polluting plants from immediate compliance with the air and water standards that were tightened by Biden's administration, as the EPA embarks on a longer process to rollback those rules.

The Mercury and Air Toxics Standard of the Biden era is still in effect after the Supreme Court refused to suspend the rules in October after a group mainly Republican states and industrial groups brought a legal challenge against it.

Last week, U.S. president Donald Trump announced that certain stationary sources covered by MATS were exempted from compliance. This was done to revitalize the coal industry and extend the life expectancy of coal power plants.

According to the Energy Information Administration (EIA), coal-burning power plants now generate less than 20 percent of U.S. electricty, down from 50 percent in 2000. This is because fracking, and other drilling methods, have increased natural gas production. Solar and wind energy have also reduced coal consumption.

The American Lung Association has stated that mercury is a powerful neurotoxin which could cause serious developmental harm. Mercury and other air pollutants associated with coal combustion increase the risk of lung cancer, asthma attacks, heart attacks, and strokes.

The Biden era rule required constant emissions monitoring.

The exemption was supported by those who said that the MATS rule imposed severe burdens on U.S. coal power plants, and the future viability of this sector.

Troy Downing, Montana Republican Congressman, applauded that two units at the Colstrip Coal Plant were included on the exemption list. He added that this "will bring clarity and certainty to operations moving forward." Reporting by Valerie Volcovici, Editing by Mark Porter

(source: Reuters)