Up to 17 percent of the planet’s agricultural land may be contaminated by toxic heavy metals, a new study has found. As many ...

The community science initiative's mission is to track pollution trends in the U.S. National Parks and on federal lands. Of ...

Pollutants are chemicals and substances that are harmful to our health or the natural environment, causing damage to the land, air or water. Outdoor air pollution in urban areas tends to be caused ...