Smog from wildfires sweeping the nation has left tens of millions more Americans to breathe toxic air even as man-made forms of pollution fall, according to a new study released Wednesday. The ...

Answer Man: Has pollution made local rivers a blue-green color? Mission and the VA Medical Center used their own water after city’s was restored?

The celebration of Earth Day in April reminded us of the importance of a healthful environment and focused attention on natural biological processes that prevent or minimize environmental ...

But unlike man-made pollution, wildfire smoke can’t be regulated by the Environmental Protection Agency, which is charged with protecting human health and the environment.

This man-made pollution is bad enough in itself, but it reflects something even worse: a dangerous illusion that technological man can build bigger and bigger industrial societies with little ...

“One of the biggest environmental challenges facing our nation is man-made pollution that damages our air, our water and our land,” Regan said in a speech at Howard University.

Cars, power plants and factories could all soon face much tougher pollution limits after a government declaration Friday setting the stage for the first federal regulation of gases blamed for ...

“One of the biggest environmental challenges facing our nation is man-made pollution that damages our air, our water and our land,” Regan said in a speech at Howard University.

“One of the biggest environmental challenges facing our nation is man-made pollution that damages our air, our water and our land,” Regan said in a speech at Howard University.