The facility, in Colstrip, Mont., used a new E.P.A. system for requesting special waivers from President Trump.

For decades, environmental policy has largely been aimed at sources of toxic air pollution. Inefficient coal plants fell under that category. Coal also is in the crosshairs of both climate ...

The rate at which the planet is warming has sped up since 2010, and now researchers say that China's efforts to clean up air ...

U.S. power producers emitted over 304 million metric tons of carbon dioxide (CO2) from power generation over the first two ...

US President Donald Trump may allow some power plants, chemical makers and others to bypass a range of regulations for years ...

Though relatively inexpensive to produce, coal is considered the dirtiest fossil fuel and comes with considerable environmental costs, including the release of particulate air pollution and nearly ...

Air pollution knows no borders, and despite renewable energy expansion, fossil fuel consumption (oil, coal, and gas) has reached record levels. These figures show no signs of slowing down.

It also intends to roll back rules on soot, mercury and coal ash pollution, as well as the so-called “good neighbor rule” that regulates downwind air pollution, and eliminate its programs ...