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Articles on Water

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Some of North America’s groundwater is so old, it fell as rain before humans arrived here thousands of years ago. Maria Fuchs via Getty Images

Ancient groundwater: Why the water you’re drinking may be thousands of years old

As surface water diminishes in the Western US, people are drilling deeper wells – and tapping into older groundwater that can take thousands of years to replenish naturally.
In an photo from 2016, Potlotek First Nation resident Patricia Paul holds a sample of water she says came from her taps at home. In December 2019 the community got a new water treatment system. THE CANADIAN PRESS/Steve Wadden

Federal election: If all parties agree that we need to end drinking water advisories in Indigenous communities, why haven’t we?

It seems all party leaders can agree, water advisories in First Nation communities need to end. If there is agreement, then isn’t it time to stop making it a campaign promise and make change?
In high alpine terrain, sun and dry air can turn snow straight into water vapor. Jeffrey Pang/WikimediaCommons

Snow can disappear straight into the atmosphere in hot, dry weather

As rivers run dry in the Rocky Mountains and the West, it’s easy to wonder where all the snow you see on mountain peaks goes. Some of it ends up in the air, but researchers aren’t sure how much.
Juniper trees, common in Arizona’s Prescott National Forest, have been dying with the drought. Benjamin Roe/USDA Forest Service via AP

Trees are dying of thirst in the Western drought – here’s what’s going on inside their veins

Without enough water, trees can develop embolisms, similar to blockages in human blood vessels, and they’re more likely to die from drought or fires.
Mars northern polar cap, photographed by the NASA Mars Reconnaissance Orbiter mission. NASA/JPL-Caltech/MSSS

Why is there so little water left on Mars?

New results show why and how water is disappearing from Mars atmosphere.
Snow melts near the Continental Divide in the Bridger Wilderness Area in Wyoming, part of the Greater Yellowstone Area. Bryan Shuman/University of Wyoming

Yellowstone is losing its snow as the climate warms, and that means widespread problems for water and wildlife

The area’s iconic national parks are home to grizzlies, elk and mountain snowfall that feeds some of the country’s most important rivers. A new report show the changes underway as temperatures rise.

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