The Trump administration's plan to keep money-losing power plants open would save coal mining jobs but at the same time unleash more pollution that would cost lives, according to a new analysis.

For every 4.5 coal mining jobs supported by the drafted policy, one American would die from the surge in air pollution tied to generating electricity from the fossil fuel, according to modeling by the independent, nonprofit research group Resources for the Future.

The assessment is one of the first broad looks at the potential environmental consequences of the Trump administration's evolving plan to prop up coal and nuclear power plants that are at risk of closing amid competition from cheap natural gas and renewable electricity. President Donald Trump ordered his energy secretary to take immediate action to stem power plant closures on June 1, and administration officials have been considering a drafted plan to require power purchases from designated at-risk facilities to keep them in operation over the next two years.