Map: Probability of elevated radon in New Hampshire groundwater. This is the most comprehensive study to date and the first…
The atmospheric rivers that flowed over California in January dumped about a foot of rain — equal to an entire…
Photo: Cracked earth in an area once under the water of Lake Mead, the largest man-made reservoir in the U.S.,…
Photo: Researchers are expressing concerns that toilet paper may be adding harmful chemicals to wastewater systems. Researchers are reporting toilet…
Photo: California and other states where water is scarce have long tapped more groundwater — particularly for agriculture — than…