US Southwest faces threat of megadroughts with rising temps

Already dealing with parched conditions, the U.S. Southwest faces the threat of megadroughts this century as temperatures rise, says a new study that found the risk is reduced if heat-trapping gases are curbed.

60 percent of key S.Asian water basin not usable: study

Sixty percent of the groundwater in a river basin supporting more than 750 million people in Pakistan, India, Nepal and Bangladesh is not drinkable or usable for irrigation, researchers said Monday.

Cleaner air may be driving water quality in Chesapeake Bay

A new study suggests that improvements in air quality over the Potomac watershed, including the Washington, D.C., metro area, may be responsible for recent progress on water quality in the Chesapeake Bay. Scientists from ...

Upstream trenches, downstream nitrogen

Water quality scientist Laura Christianson is working on a solution to the "dead zone"—an area with dangerously low levels of oxygen— in the Gulf of Mexico. Christianson lives over a thousand miles north of the Gulf in ...

New study calls for old methods of coastal management

Almost 90 years ago, the Mississippi River showed the world its power for destruction with the Great Flood of 1927. Now the river's power is once again on display, this time as a stabilizing force to maintain Louisiana's ...

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