Melting glaciers in Boulder release sulfate into wetlands, increasing methylmercury production and ecosystem risks.

Last year, the U.S. Environmental Protection Agency gave this country’s nearly 200 remaining coal-fired power plants until 2027 to install or improve air quality monitoring devices on smokestacks to ...

Included in the Trump administration’s order last week to boost the coal industry was a ... nation’s most polluting power plants to reduce emissions of mercury and other air toxics.

The Illinois Municipal Electric Agency plans to sell $600 million of refunding bonds in July, amid questions about member ...

Then came the coal-fired power plants, built throughout northern Arizona and northwestern New Mexico to power progress in distant Western cities. The plants would play their own role in the ...