Ghana has plenty of water. So why do its people buy plastic pouches from street vendors? Shaun Raviv investigates. »
While pundits point fingers at who’s to blame for California’s catastrophic drought, it seems that the state is finally taking one big step towards action. Last week, California’s water board sent a letter to senior water rights holders warning that their rights might be curtailed. But what does this really mean?
Lima is one of the world’s largest desert cities, so when it rains it—just kidding, it pretty much never rains. Which leaves Peru’s capital city especially vulnerable to water shortages, and the surprising solution might be reviving a system of ancient canals that date back to even before the Incas. »
If we’re talking about who’s wasting water during California’s drought, one of the big culprits is oil production—about 10 gallons of wastewater are produced for every gallon of oil. Now oil companies like Chevron are selling that water back to farmers. But it’s not as tidy of an idea as you’d think.
This image shows a geological feature know as recurring slope lineae on the surface of Mars. These flows, which occur seasonally, are suspected by NASA to be the result of seeping water. »
Down is the most effective, commonly available insulator known to man. So long as you keep it dry. But, new hydrophobic down coatings promise to retain its warmth when wet. We tested that claim by cutting a hole in a frozen lake and jumping through it. »
By studying the subtle shifts of aurorae on Ganymede, scientists working with the Hubble Space Telescope have concluded that Jupiter's largest moon hosts a massive subterranean ocean. Quite suddenly, the outer reaches of our solar system appear to be a very wet place, indeed. »
You know you need to filter, treat or boil water you find in the wilderness. But why? Well, there's a number of answers, starting with words like E. Coli, Hepatitis A, Giardia and Cryptosporidiosis.
Black magic and sorcery and deals with the devil and breaks in The Matrix and possibly other dimensions. That's what super hydrophobic material is made out of. Like this super hydrophobic knife that just slices through a water droplet and cuts it in two. Are we really sure science can explain what my eyes are seeing? »
Will cities in the future be re-designed to function "like sponges," to cope with droughts that will only become more severe thanks to climate change? »
Bill Gates loves the Janicki Omniprocessor, an amazing machine that turns human waste into electricity and drinkable water. He saw it and he is extremely impressed. So impressed in fact that he drank from a glass of water that was human poop only five minutes earlier. "It's water," he said, obviously relieved. »