Latest News
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Shining a Light on Stressed Resources
Executives gathered in Rotterdam Wednesday at a business forum focused on the linked stresses that the planet faces over water, food, and energy.
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Photos: First Elephant Underpass
A corridor beneath a busy highway in northern Kenya is helping isolated elephant populations reunite, conservationists say.
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Everest Team Changes Route
Unsafe conditions on Mount Everest have forced a Nat Geo team to cancel plans to ascend via the West Ridge, the expedition leader says.
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Hundreds of Superflares Spotted
But the new data from a NASA spacecraft cast doubt on a popular theory for what triggers the planet-roasting bursts of energy.
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"Body Jars," Cliff Coffins Revealed
Perched on cliff ledges, centuries-old log coffins and "body jars" are the only known traces of an unknown Cambodian tribe.
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Year's Best Night-Sky Pictures
A holiday comet, Icelandic auroras, and the Milky Way feature among the winning shots from the International Earth and Sky Photo Contest.
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Prehistoric "Panda" Found in Spain
A small fossil bear recently identified in Spain suggests China's giant panda has European roots, a new study says.
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Space Pictures This Week
A supermoon looms, a solar flare erupts, and night-shining clouds glow in this week's best space pictures.
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New Planet in Our Solar System?
An unseen world might be disturbing the orbits of several objects in the outer solar system, new calculations hint.
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Runner's High Hardwired
The pleasurable sensation known as "runner's high" may have motivated human and canine ancestors to build endurance, a new study says.
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Organic Air Fresheners
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Side Effects of Vegetarianism
Find out how to stay healthy and eat lower on the food chain.