How much water is there on – in – and above the Earth?

Posted in: Water Education
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Article courtesy of USGS Water school | January 12, 2013 | Shared as educational material only

Where is Earth’s water located and in what forms does it exist? This article by Howard Perlman, Jack Cook and Adam Nieman focus on the distribution of water on Earth. The vast majority of water on the Earth’s surface, over 96 percent of all water (oceans, seas, ice, most saline water, and atmospheric water) is not available for our uses. And even of the remaining fraction of one percent, much of that is out of reach. Considering that most of the water we use in everyday life comes from rivers we generally only make use of a tiny portion of the available water supplies. The vast majority of the fresh water available for our uses is stored in the ground. Read full here :


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