Earth Day was the brainchild of Sen. Gaylord Nelson of Wisconsin to bring environmentalism into the mainstream and beyond the realm of a few birdwatchers. Nelson’s co-chair was ...

With bipartisan leadership and cooperation between the U.S. and Canada, acid levels slowly reduced, and recent samples ...

If US regulations on sulphur dioxide are relaxed, environmental monitoring professionals may need to consider how it will be ...

Sure, we all know about the asteroid impact that is thought to have wiped out the dinosaurs, but did you know that the Earth ...

Decades of acid rain generated by power-plant emissions have ... For months I'd been on the trail of the greatest natural disaster in Earth's history. About 250 million years ago, at the end ...

The problem in the 1980s was that American power plants were sending up vast clouds of sulfur dioxide, which was falling back to earth in the form of acid rain, damaging lakes, forests and ...