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<!– –> In the 16th century, during its conquest of South America, the Spanish Empire forced countless Incas to work extracting silver from the mountaintop mines of Potosí, in what is now Bolivia—then the largest source of silver in the world. The Inca already knew ho

<!– –> For more than 30 years, the 1,000-mile Yukon Quest International Sled Dog race, which begins Saturday, has followed the Yukon River between Whitehorse, Canada, and Fairbanks, Alaska. A little open water along the Yukon Quest trail is nothing new, but in recent

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Vast ranges of volcanoes hidden under the oceans are presumed by scientists to be the gentle giants of the planet, oozing lava at slow, steady rates along mid-ocean ridges. But a new study shows that they flare up on strikingly regular cycles, ranging from two weeks to 100,000 years—a

Can smoke from fires intensify tornadoes? “Yes,” say University of Iowa researchers, who examined the effects of smoke—resulting from spring agricultural land-clearing fires in Central America—transported across the Gulf of Mexico and encountering tornado conditions already in process

This post originally was published on WRI.org. How does bioenergy contribute to a sustainable food and climate future? A new WRI paper finds bioenergy can play a modest role using wastes and other niche fuelstocks, but recommends against dedicating land to produce bioenergy. The lesso

<!– –> Naturally occurring arsenic in private wells threatens people in many U.S. states and parts of Canada, according to a package of a dozen scientific papers to be published next week. The studies, focused mainly on New England but applicable elsewhere, say priva

<!– –> Germany will this year for the first time connect more new offshore wind installations than Britain after energy operators scrapped a string of projects planned for UK waters. Despite having more installed offshore capacity than the rest of the world combined,

<!– –> One of nature’s fascinating questions is how zebras got their stripes. A team of life scientists led by UCLA’s Brenda Larison has found at least part of the answer: The amount and intensity of striping can be best predicted by the temperature of the environmen

<!– –> A new study of marine organisms that make up the ‘biofouling community’ — tiny creatures that attach themselves to ships’ hulls and rocks in the ocean around the world — shows how they adapt to changing ocean acidification. Reporting in the journal Global Chan