Half world's largest lakes and reservoirs drying up: study

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More than half of the world's largest lakes and reservoirs are dwindling and placing humanity's future water security at risk, with climate change and unsustainable consumption the main culprits, a study said Thursday. ManilaBulletin READ:

"Lakes are in trouble globally, and it has implications far and wide," Balaji Rajagopalan, a professor at the University of Colorado Boulder and co-author of the paper, which appeared in Science, told AFP.

But high profile environmental disasters in large water bodies like the Caspian Sea and the Aral Sea, signaled to researchers a wider crisis. The results: 53 percent of lakes and reservoirs saw a decline in water storage, at a rate of approximately 22 gigatonnes a year. For natural lakes, much of the net loss was attributed to climate warming as well as human water consumption.

These included in the Tibetan Plateau, "where glacier retreat and permafrost thawing partially drove alpine lake expansion," the paper said.

 

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