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Satellites reveal a hidden global water crisis that could change life on Earth
@Source: indiatimes.com
TIL CreativesGroundwater loss now driving sea level rise faster than melting ice
For more than 20 years, satellites have been quietly watching Earth’s most vital resource disappear, and the data is alarming. A new study led by Arizona State University and published Friday in Science Advances reveals that Earth’s continents are drying out at unprecedented rates, threatening water security for billions and accelerating sea level rise.“We are edging toward an imminent freshwater bankruptcy,” warned Hrishikesh Chandanpurkar, the study’s lead author. “Glaciers and deep groundwater are like ancient trust funds. Instead of saving them for times of real need, we are draining them.”What the satellites sawResearchers analyzed over two decades of data from NASA’s GRACE and GRACE-Follow On missions, which measure subtle shifts in Earth’s gravity to track changes in water storage underground, in soils, snow, and glaciers. The findings stunned even veteran scientists:Drying regions are expanding by an area twice the size of California every year.75 percent of the world’s population, in 101 countries, has lived through continuous freshwater loss since 2002.Groundwater depletion now contributes more to sea level rise than melting ice sheets in Greenland and Antarctica combined.Four mega-drying regionsThe research identifies four massive belts of continental-scale drying, all in the Northern Hemisphere:Live EventsSouthwestern North America & Central America: From California’s farmlands to Mexico City.Alaska and Northern Canada: Accelerated melting of glaciers and permafrost.Northern Russia: Snow and ice losses across Siberia.Middle East–North Africa into Eurasia: Spanning from the deserts of the Arabian Peninsula through Ukraine and northern India to China’s North Plain.These regions include some of the planet’s most critical agricultural zones and densely populated cities, places where water stress could trigger food shortages, migration, and political instability.The study found 68 percent of land water loss came from groundwater alone, a largely invisible crisis.Why it matters nowThe researchers warn that without immediate, coordinated policies to slow groundwater pumping, improve recharge, and share water data, the crisis will deepen. “We can’t negotiate with physics,” Famiglietti said. “Water is life. When it’s gone, everything else unravels.”The findings will feed into a forthcoming World Bank report on water security and global economic stability.(You can now subscribe to our Economic Times WhatsApp channel)
Read More News onglobal water crisisgroundwater depletionsatellite datafreshwater lossclimate changeagriculture water stressArizona State University studyscience advancesNASA
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(You can now subscribe to our Economic Times WhatsApp channel)Read More News onglobal water crisisgroundwater depletionsatellite datafreshwater lossclimate changeagriculture water stressArizona State University studyscience advancesNASA(Catch all the US News, UK News, Canada News, International Breaking News Events, and Latest News Updates on The Economic Times.) Download The Economic Times News App to get Daily International News Updates....moreless
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