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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.
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.
In February, the Innu Council of Ekuanitshit and the Minganie Regional County Municipality declared the Muteshekau Shipu (Magpie River) a legal person, a move that may provide greater certainty for this majestic river’s future. (Boreal River)

Rights for nature: How granting a river ‘personhood’ could help protect it

A recent declaration of a river as a legal person in Canada recognizes Indigenous laws and governance, and champions people as the guardians of nature.
New technologies that can clean salty or polluted water could help meet growing water needs. Science Photo Library/Getty Images

A new way to remove salts and toxic metals from water

Desalination can help meet growing water needs globally. But toxic wastewater and inefficiency hamper current techniques. A new approach uses custom membranes to clean water more easily.
Water flows from the Vaal Dam after several sluice gates were opened in February 2021. Heavy rains in the Gauteng province resulted in a spike in dam levels. Deaan Vivier/ via GettyImages

Why full dams don’t mean water security: a look at South Africa

Gauteng citizens need to know the uncomfortable truth: for the next six years, their water supplies will increasingly have to be restricted.
An orchard near Kettleman City in California’s San Joaquin Valley on April 2, 2021. Frederic J. Brown/AFP via Getty Images

Water wells are at risk of going dry in the US and worldwide

The US has one of the highest groundwater use rates in the world. When wells run dry, households may opt to conserve water, find new sources or sell and move.

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