A Vanishing Aquifer

A Vanishing Aquifer
▻http://www.nationalgeographic.com/magazine/2016/08/vanishing-aquifer-interactive-map

http://www.nationalgeographic.com/content/dam/magazine/rights-exempt/2016/08/vanishing-aquifers/ogallala-aquifer.ngsversion.1468346844779.jpg

A Vanishing
Aquifer
What happens when the water runs out?

Underground, the High Plains aquifer stores as much water volume as Lake Huron. (2.9 billion acre-feet)
Thirty percent of all water used to irrigate U.S. agriculture is pumped here.

#eau #aquifère #États-Unis #agro-industrie #cartographie #beau