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February 11, 2008

Fresh Water


Q:  How much of the Earth's water is fresh water versus salt water?
A:  About 70 percent of the Earth's surface is covered by water.  22.5 percent of this is fresh water.  The other 97.5 percent is fresh water.

Q:  What percentage of the world's fresh water is stored as glacial ice?
A:  Nearly 70 percent of our fresh water is frozen in the icecaps of Antarctica and Greenland.  One study I read said it would take nearly 60 years of the entire globe's rainfall to replace it.

Q:  How much of the Earth's fresh water is easily accessible?
A:  1 percent of the world's fresh water is accessible for direct human uses.  This fresh water is found in lakes, rivers, reservoirs and aqueducts.  Rain and snowfall renew this supply and make it available on a sustainable basis.


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