FROM CORY: It’s interesting to note that there are a lot of causes for the result of the water crisis. Lots of people harp on over-use of city/rural water or contamination, and all those have hugely valid points. it is, however, nice to read an article that brings something new to the table. This article was shared with me by @jonathanheston
By LiveScience Staff
“The soils in large areas of the Southern Hemisphere, including large parts of Australia, Africa and South America, have been drying up in the past decade, a new study finds.
The study is the first major one of its kind to look at the movement of water from the land to the atmosphere, called “evapotranspiration,” on a global scale. This phenomenon returns about 60 percent of annual precipitation back to the atmosphere, in the process, using more than half of the solar energy absorbed by land surfaces. This is a key component of the global climate system, linking the cycling of water with energy and carbon cycles.
Most climate models have suggested that evapotranspiration…”