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Earth has about 370 quintillion gallons of water, but only a tiny fraction is useable by humans. Earth’s water budget tells us where water is today, where it’s coming from, and where it’s going to be tomorrow. #WorldWaterDay
#NASAEarth
#nasaearth #WorldWaterDay
in reply to NASA

Den Parente
Den Parente
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Are we using the term "useable" correctly? I think the better term might be "drinkable". After all, we USE non-potable water to buoy our ships, move our turbines, cool our reactors, and provide sport and recreation.

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