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UD-Stanford team calculates maximum global energy potential from wind

Wind turbines could power half the world’s future energy demands with minimal environmental impact, according to new research published by University of Delaware and Stanford University scientists in the Proceedings of the National Academy of Sciences.

The researchers arrived at the determination by calculating the maximum theoretical potential of wind power worldwide, taking into account the effects that numerous wind turbines would have on surface temperatures, water vapor, atmospheric circulations and other climatic considerations.

“Wind power is very safe from the climate point of view,” said Cristina Archer, associate professor of geography and physical ocean science and engineering at UD. (more…)

Ancient Domesticated Dog Skull Found in Siberian Cave

By Guest PostJanuary 22, 2012Scienceaccelerator mass spectrometer, altai mountains, atmospheric circulation, beam of carbon, belgium, best friend, carbon 12, carbon 13, carbon 14, carbon beam, carbon isotopes, cave, chihuahua, climate change, crowded, dog domestication, dog skull, domestication, earth, euro asia, glacial maximum, greg hodgins, half life, last glacial maximum, last ice age, lgm, man, mass spectrum, modern dogs, organic molecules, photosynthesis, plants, radioactive carbon, radiocarbon, radiocarbon age, razboinichya cave, rottweiler, Siberia, siberian mountain, teeth

*A 33,000-year-old dog skull unearthed in a Siberian mountain cave presents some of the oldest known evidence of dog domestication and, together with an equally ancient find in a cave in Belgium, indicates that modern dogs may be descended from multiple ancestors.*

If you think a Chihuahua doesn’t have much in common with a Rottweiler, you might be on to something.

An ancient dog skull, preserved in a cave in the Altai Mountains of Siberia for 33,000 years, presents some of the oldest known evidence of dog domestication and, together with equally ancient dog remains from a cave in Belgium, indicates that domestication of dogs may have occurred repeatedly in different geographic locations rather than with a single domestication event. (more…)

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Wind Power’s Potential

Ancient Domesticated Dog Skull Found in Siberian Cave