Enough water to go around?

sumsung submitted, created time 9 months 2 weeks (www.nature.com)

If our planet were perfectly flat and its water covered all the surface, it would create a layer 2.7 kilometers deep. While this seems like a lot, less than 3% of that is freshwater. Of that, nearly 70% is in ice caps, glaciers, and permanent snow, and 30% sits in ground water. Rivers, lakes, and clouds carry less than 1% of the world's freshwater.

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