Author profile: Patrick MacQuarrie

Water Security in the 21st Century

Patrick MacQuarrie • Apr 2 2008 • Articles

The total quantity of water in the world is immense, but over 97.5 percent, is either saltwater or locked in ice caps (1.75%). The amount economically available for human use is only 0.007 percent of the total water available on earth, or about 13,500 cubic kilometres. While this seems like a massive amount, it only accounts to about 2300 cubic meters per person per year  a 37 percent drop since 1970. Both water quantity, quality, and distribution have been neglected to the point of nearing a worldwide catastrophe.

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