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Rise of Humans 2 Million Years Ago Doomed Large Carnivores

Lions are one of just six carnivores that remain in East Africa today, compared with more than 15 species that shared the landscape before the dawn of Homo. Image: Kate Wong The impact of Homo sapiens on the environment over the past few hundred years has been so profound that some scientists term this chapter of Earth s history the Anthropocene . But humans may have begun wreaking ecological havoc far, far earlier than that.

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Conservatives Lose Faith in Science over Last 40 Years

Conservatives' trust of science has gradually decreased over the past 40 years, beginning perhaps when empirical research was increasingly used to justify government regulations, according to a new academic analysis. [More]

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6 Traits of Great Leaders

The best entrepreneurs are passionate, innovative, demanding and caring. See what makes them excel.

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A new discovery answers an old question

(PhysOrg.com) -- The transition-metal monoxide FeO is an archetypal example of a Mott insulator—a material that should conduct electricity under conventional band theories but becomes an insulator when measured, especially at low temperatures—and a major iron-bearing component of the Earth’s interior. Understanding the high-pressure behavior of this material is important for both solid-state physics and Earth science.

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Audi’s e-tron Spyder Is a Diesel-Electric Hybrid Supercar for a New Generation

One of today’s greatest challenges for automakers is developing innovative and viable alternatives to gasoline-powered engines. Several hybrid and electric options have hit the market over the past several years and diesel has made a surprising comeback, so it was only a matter of time before one manufacturer was bold ...

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New Molecule Could Help Cool Planet

By Nina Chestney LONDON (Reuters) - A new molecule has been detected in Earth's atmosphere which could help produce a cooling effect, scientists said, but it remains to be seen whether it can play a major role in tackling global warming . The molecule can convert pollutants, such as nitrogen dioxide and sulphur dioxide, into compounds which can lead to cloud formation, helping to shield the earth from the sun, the researchers said. Over the past century, Earth's average temperature has risen by 0.8 degrees Celsius.

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The U.S. Now Uses More Corn For Fuel Than For Feed

For every 10 ears of corn that are grown in the United States today, only 2 are consumed directly by humans as food. The remaining 8 are used in almost equal shares for animal feed and for ethanol .

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The I-Slate: A Low-Cost Tablet For Kids In The Developing World

This tiny tablet can be powered by the sun, and dramatically improves a student's abilities to learn math. Over the years, computers have become an integral part of education in the developed world. But what of schools in less wealthy areas that lack access to electricity, not to mention the cash for pricey electronics?

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Atlas Overstating Greenland Ice Loss Riles Scientists

By Lucas Laursen of Nature magazine Glaciologists and climatologists are racing to correct an error in the latest edition of The Times Comprehensive Atlas of the World, which they say overstates the extent of ice loss in Greenland over the past 12 years. The 13th edition of the atlas was released on 15 September.

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