33% aquifers under stress

water, water-stress, aquifer, NASA, satellite California, drought

Scientist can’t say for sure how much water is left in the aquifers

According to a new study from researchers at the University of California and NASA about 33% of the aquifers is under stress.

New data from NASA Grace-satellites show that many big aquifers all over the world are being sucked dry at a rate far greater than they can be replenished. 

GRACE measures water under the ground. Satellites watched 37 aquifers world wide over the course of 10 years to see what was happening to the water they held.

Not surprising is that groundwater is being rapidly depleted in the Middle East, North Africa and Central Asia. The aquifer under California’s drought-stricken Central Valley is also being overused.

Other places, such as the sparsely populated and very wet Amazon Basin and the U.S. Great Plains fared better. While the data provide reliable estimates of use, the researchers can’t say for sure how much water is left in the aquifers.

Link to the full report


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