Earth has less water than you think

Media reports relating to water issues in general.
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Grahame
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Earth has less water than you think

Post by Grahame »

Universe Today wrote:If you were to take all of the water on Earth — all of the fresh water, sea water, ground water, water vapor and water inside our bodies — take all of it and somehow collect it into a single, giant sphere of liquid, how big do you think it would be?

According to the U. S. Geological Survey, it would make a ball 860 miles (1,385 km) in diameter, about as wide edge-to-edge as the distance between Salt Lake City to Topeka, Kansas. That’s it. Take all the water on Earth and you’d have a blue sphere less than a third the size of the Moon.
Full story: Universe Today
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Re: Earth has less water than you think

Post by Grahame »

Not sure how relevant this study is now, with the discovery of ringwoodite in the mantle, which is estimated to hold something like 3x the amount of water in the Earth's oceans. Related thread here.
Grahame
The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it - Terry Pratchett.
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