“mega-drying” regions where separate areas of freshwater loss have now connected to create a swathe of drying. Those include northern Canada and Russia, where loss is driven by melting glaciers, permafrost and reduced snow.
In the other two regions, water loss is dominated by groundwater depletion, mainly from pumping for irrigation. Those are the US Southwest, much of Central America and a region stretching from western Europe and North Africa to northern India and China. They found groundwater depletion, which can be exacerbated by heat and drought prompting people to pump more, makes up 68 per cent of the decline in overall water storage.
https://www.science.org/doi/10.1126/sciadv.adx0298
I wrote a University Op-Ed in 2000 that predicted this - "Water crisis sucks us into global revolution"
No comments:
Post a Comment