Barrett Sheridan

The next revolution in green cars is more likely to come from ordinary combustion engines than some exotic technology.

Scrolling and searching are primitive ways of handling information. The human mind is much better at zooming, says Microsoft computer scientist Blaise Aguera y Arcas.

Humans weren't made for scrolling and searching. We were made for zooming.

Yale University's newest ranking of the world's greenest countries offers a few surprises—and some useful lessons for business leaders.

Stephen Rapp, the U.N. lawyer prosecuting Charles Taylor, talks about his case against the Liberian ex-president and the power of international courts to stop slaughter

For the developing world, these are the best of times, says Morgan Stanley's emerging-markets guru.

Forget headlines—the world economy has never been better.

Until the free marketers and the protectionists start talking to each other and finding common ground, the divide between rich and poor will continue to widen, says former U.S. secretary of Labor Robert B. Reich.

The World Bank, reeling from scandal and questions about its role, needs to get its act together, says former chairman of the U.S. Federal Reserve Paul Volcker.

High food prices always hit the poor hardest, and these days there is plenty of bad news. Corn prices are nearly $4 a bushel, almost double their 2005 level.

As for so many of us, the genocide in Darfur was merely an abstraction to Ashok Gadgil, a scientist at the Lawrence Berkeley National Laboratory in California.

Since making a fortune as a founder of Sun Microsystems, Vinod Khosla has built on it as an investor with pre-eminent venture-capital firm Kleiner Perkins Caufield & Byers.

Craig Venter is the rude boy of molecular biology. He made himself famous by decoding the human genome faster and cheaper than anyone expected, beating a team of rivals led by the U.S. National Institutes of Health.

First came the bird flu. Now China's pigs are succumbing to a violent infection. Is a human disease next?

America is scared of global warming. In a recent poll by Yale's Center for Environmental Law and Policy, 83 percent of Americans called global warming a "serious" problem, up from 70 percent in 2004, and 63 percent agreed that the United States "is in as much danger" from environmental threats including global warming "as it is from terrorists."If even gas-guzzling Americans are alive to the danger, you know most nations now accept climate change as real.

No matter what action we take to reduce emissions, the carbon already in the atmosphere will continue to warm the globe over the next century, creating winners and losers in business and agriculture.

Start the new year high--real high. Cold weather is the best time for hot-air ballooning. The clear winter air affords better visibility, sometimes letting you see as far as 100 kilometers in the distance.

With 2007 peeking around the corner, it's time to start making plans to ring in the new. For the ultimate New Year's experience, host your own party on a private island in the Maldives, boasting white sands and turquoise waters.