Girl Planting seeds

New feedback phenomenon found to drive increasing drought and aridity

A new Columbia Engineering study indicates that the world will experience more frequent and more extreme drought and aridity than currently experienced in the coming century, exacerbated by both climate change and land-atmosphere processes. The researchers demonstrate that concurrent soil drought and atmospheric aridity are largely driven by a series of land-atmosphere processes and feedback loops. They also found that land-atmosphere feedbacks would further intensify concurrent soil drought and atmospheric aridity in a warmer climate. The study was published today in Proceedings of the National Academy of Sciences (PNAS).  Read more....



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