Age of water

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Age of water

Rivers, lakes and mound springs
Left to right: Lake Rotorua, New Zealand; a mound spring in South Australia; Byron Blomquist cuts an ice core in Utqiavik, Alaska. Credits: GLVImages/Getty; Auscape/Getty; The Washington Post/Getty

When you’re drinking a cool glass of water, have you ever wondered how old it is? Age dating water isn’t an exact science, but it’s an emerging tool for environmental management.

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