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This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.

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Since 1900, the U.S.has pulled enough water from underground aquifers to fill two Lake Eries.

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And in just the first decade of the 21st century, we've extracted underground water sufficient to raise global sea level by more than 2 percent.

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We suck up 25 cubic kilometers of buried water per year.

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That's the message from the U.S.Geological Survey's evaluation of how the U.S. is managing its aquifers.

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Or mismanaging.

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For example: water levels in the aquifer that underlies the nation's bread basket have dropped in some places by as much as 160 feet.

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The rest of the world isn't doing any better.

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A conference of water scientists just issued the so-called Bonn Declaration,

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which declares that this lack of foresight will cause the majority of people alive in 2050 to face "severe" freshwater shortages.

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Mismanagement of water resources is a hallmark of this new human-dominated era in the Earth's geologic history, known as the Anthropocene.

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Despite building, on average, one large dam every day for the last 130 years, we use more water than we store.

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And we're letting that freshwater escape to the seas.

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Which means we may find ourselves with water, water everywhere, but not adapt to drink.

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Your minute is up, for Scientific American 60-Second Earth. I'm David Biello,

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