Read at : Google Alert – desertification
http://zunia.org/post/the-economics-of-desertification-land-degradation-and-drought/
The economics of desertification, land degradation, and drought
A review of literature on global evaluations of land degradation shows a significant development in methods and approaches to mitigate it. Earlier evaluations based their assessments on expert opinion and concentrated on only a few types of land degradation—namely soil erosion and deforestation. Recent studies have expanded the types of land degradation assessed to include other major indicators of terrestrial ecosystem services—made possible, in part, by rapid technological development.
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