The new technique will map the top of the aquifer, called the 'water table,' spanning areas as large as hundreds of kilometers using a radar mounted on a high-altitude aircraft. According to the ...

The Colorado River basin has lost a Lake Mead’s worth of water in the last 20 years — and scientists say we’re passing a "critical point" where pumping groundwater will become too expensive. When you ...

Groundwater records from the last ice age indicate that aquifers in the U.S. Southwest are more sensitive to global warming than aquifers in the Pacific Northwest. When you purchase through links on ...

How much fresh water is in the United States? It's a tough question, since most of the water is underground, accessible at ...