NASA - Precious Freshness: Water, The Way We Like It

NASA - Precious Freshness: Water, The Way We Like It

As far as we know, all life on Earth depends on water. As humans, we need freshwater to survive. Many of us in the United States don’t spend a lot of time thinking about water. When we’re thirsty, we grab a glass and it is always available. When we want to shower, we turn on the faucet and out it flows, in a seemingly unlimited amount. When we want to eat, we buy groceries—food from crops that farmers have grown, often by using irrigation. We charge our electronic devices with electricity created by waterpower or cooled by water. You might be surprised to know that in the U.S., we use almost half of our freshwater to create electricity! We don’t have to lug containers down to a muddy stream or community well to haul water back home for drinking, cooking, and keeping clean. Most of the time, we aren’t worried about water unless there’s too much, as in a flood, or not enough, as in a drought. Yet this precious and essential resource isn’t distributed evenly across our planet. (See full story for image gallery.)

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