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The authors found that groundwater levels declined between 2000 and 2022 in 71% of the 1,693 aquifer systems included in the research, with groundwater levels declining more than 0.1 meter a year in 36%, or 617, of them. Declines not universalThe study also highlighted some success stories in Bangkok, Arizona and New Mexico, where groundwater has begun to recover after interventions to better regulate water use or redirect water to replenish depleted aquifers. They found that declines in groundwater levels sped up in the first two decades of the 21st century for 30% of those aquifers, outpacing the declines recorded between 1980 and 2000. “I think it’s fair to say this global compilation of groundwater data hasn’t been done, certainly on this scale, at least to my knowledge before,” he said. “Groundwater is an incredibly important resource but one of the challenges is… because we can’t see it, it’s out of mind for most people.
Persons: , Debra Perrone, Scott Jasechko, Jasechko, ” Jasechko, Donald John MacAllister Organizations: CNN, University of California’s, Environmental, Bren School of Environmental Science, Management, University of California Santa, British Geological Survey Locations: India, United States, Soplamo, Spain, University of California Santa Barbara, Iran, Africa, South America, Asia, Bangkok , Arizona, New Mexico
Humans in many parts of the world are pumping groundwater faster than it can be replenished. Places like Thailand and Saudi Arabia, however, have managed to slow groundwater depletion rates. USGSGroundwater is one of the largest freshwater sources anywhere in the world, making the depletion of aquifers a significant concern. AdvertisementGroundwater depletion is more severe now than a few decades agoFarms are responsible for much of the US's groundwater depletion. The Bangkok basin in Thailand is another example the study highlighted where groundwater levels rose in the early 21st century compared to previous decades.
Persons: Scott Jasechko, Upmanu Lall, Jasechko, Richard Taylor, Taylor, Hydrologists, Felicia Marcus, Marcus, you've Organizations: Service, University of California, Columbia University, Columbia Water Center, University College London hydrogeology, Stanford, Water, West Program Locations: Thailand, Saudi Arabia, Santa Barbara, drylands, Mexico, Iran, California, Bangkok, Thai, Tucson , Arizona, Colorado
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