Since 1900 the U.S. Has Lost Enough Groundwater to Fill Lake Erie Twice

Circle of Blue: Groundwater is often compared to a bank account. By this analogy, the United States is making significantly more withdrawals than deposits, according to the U.S. Geological Survey’s first national assessment of groundwater depletion. Between 1900 and 2008, the U.S. groundwater reserves dropped by nearly 1,000 cubic kilometers (264 trillion gallons), or enough water to fill Lake Erie -- twice. And the problem is getting worse. The rate of depletion from 2000 to 2008 was nearly three times greater......

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