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http://www.worldometers.info/water/
Total world fresh water use is about 51,885,644 acre-feet/year. And there are 89,600,000,000 acres of ocean, by my calculation.
If we were to draw all of the world's water needs for one year from the oceans, the change in sea levels would be imperceptible, on the order of 1/140 of an inch.
And all of this would evaporate and return to the oceans.
Total world fresh water use is about 51,885,644 acre-feet/year. And there are 89,600,000,000 acres of ocean, by my calculation.
If we were to draw all of the world's water needs for one year from the oceans, the change in sea levels would be imperceptible, on the order of 1/140 of an inch.
And all of this would evaporate and return to the oceans.
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