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13 October 2010

Huge parts of world are drying up

The soils in large areas of the Southern Hemisphere, including major portions of Africa, Australia and South America, have been drying up in the past decade, researchers claim.

The soils in large areas of the Southern Hemisphere, including major portions of Australia, Africa and South America, have been drying up in the past decade, a group of researchers conclude in the first major study to ever examine "evapo-transpiration" on a global basis.

Due to the limited number of decades for which data are available, scientists say they can't be sure whether this is a natural variability or part of a longer-lasting global change. But one possibility is that on a global level, a limit to the acceleration of the hydrological cycle on land has already been reached.
 

 
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