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Published 8 years ago by ckshenn with 0 Comments
by ckshenn
8 years ago

Humans Are Draining Even More of Earth's Freshwater Than We Thought

Humans have been trying to wrangle Earth’s freshwater since the dawn of civilization. Case in point: the 3,000-year-old Sadd Al-Kafra embankment dam in Egypt. Things like dams and irrigation obviously affect local waterways, but it’s much harder to figure out how those local changes influence freshwater supplies worldwide.

Continue Reading http://www.smithsonianmag.com

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