Articles on Water

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A man walks through a greenhouse in northeastern Uganda where sustainable agriculture techniques such as drought-resistant crops and tree planting are taught, Oct. 19, 2017. AP Photo/Adelle Kalakouti

World hunger has risen for three straight years, and climate change is a cause

After declining for nearly a decade, the number of hungry people in the world is growing again. Climate change, which is disrupting weather patterns that farmers rely on, is a major cause.
Volunteers prepare to take flow measurements on Muddy Creek. Centre County Pennsylvania Senior Environmental Corps

How monitoring local water supplies can build community

When people form local networks to take care of resources such as drinking water, they strengthen their communities. Technology can support these efforts and promote learning and innovation.
Cooling dairy cows with fans and misters at Pacheco Dairy in Kerman, Calif., during a heat wave in 2006. AP Photo/Gary Kazanjian

Heat is a serious threat to dairy cows – we’re finding innovative ways to keep them cool

Dairy cows are sensitive to heat, so farmers cool them down with sprinklers and fans. Researchers are designing better, more efficient systems to keep cows comfortable through hot California summers.
Research indicates that up to a third of all food is wasted – but also shows that anti-waste campaigns frequently backfire. Rick/Flickr

When anti-waste campaigns backfire

Research shows that campaigns that try to make consumers feel guilty about the amount they waste often make things worse, not better. A new study poins the way to more effective anti-waste campaigns.
Thomas Johnson drinks Gatorade at a ‘Beat the Heat’ event the company sponsored in Fort Worth, Texas, June 10, 2013. Brandon Wade/Invision for Gatorade/AP Photo

Overhydrating presents health hazards for young football players

Yes, it's hot outside. And football practice is starting for thousands of kids. But coaches and parents should be careful about tellings kids to drink more water. That has been deadly.
Mars’ south polar cap, as seen from Mars Global Surveyor. Buried beneath, we now know, is a lake of liquid water. NASA/JPL/MSSS

Discovered: a huge liquid water lake beneath the southern pole of Mars

Researchers have found evidence of a large lake of salty water, buried 1.5 kilometres beneath the southern polar ice cap on Mars. So what does that mean for life on the red planet?

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