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The past decade has been the most intense period of hurricane activity since the medieval ages. The new study, using data from the earth and oceans, found that conditions were ideal for hurricanes about 1,000 years ago.

If Elena Kagan is confirmed, she will become the first Supreme Court justice in four decades to ascend to the high court with no previous judicial experience. Is this a big deal? It depends on who's doing the talking. But historically, dozens of justices have taken nonjudicial paths to the Supreme Court.

A new UC San Diego study claims global warming will lead to biodiversity loss and glacial melt. The lead author believes the Earth will warm more than two-degrees Celsius even if humans take steps to

Scientists working in Ethiopia have discovered what they say is the biggest trove of fossils yet from the earliest known human ancestor. Fossils include teeth that suggest a new, more sophisticated procreation strategy for the time: males exchanging food for sex.

Senate Majority Leader Harry Reid will mount a scorched earth campaign against Tea Party favorite Sharron Angle, who just won Nevada's GOP primary, analysts say. That could save his job.

Michele Norris talks with Fred Weir, a correspondent for the Christian Science Monitor, who is based in Moscow, about the Russian public's reaction to news of Alexander Litvinenko's death. Weir says most of the Russian public actually doesn't even know about the case, because the big Russian media outlets are not carrying the story. Weir also points out that although Litvinenko publicly blamed Russian President Vladimir Putin for his poisoning, Litvinenko lived in a shady world, and there were plenty of others who might have wanted him dead.

Rising sea levels are destroying the fields and livelihoods of people on Sagar Island in the Bay of Bengal. Refugees arrived from a nearby island after it was swallowed up by waves. Scientists say climate change is a factor. Residents of the island, which is a sacred place for Hindus, say God is responsible.

The international commission that regulates fishing of tuna and other large migratory fish in the Atlantic voted to sharply reduce the fishing quota for bluefin tuna at their latest meeting. But some scientists say the new quota is too high to sustain the species.

The Israeli-Gaza conflict rages on as the world watches. What can be done to stop the bloodshed in the region? Will peace ever exist in this ancient land? We'll talk with two San Diego professors w

The International Atomic Energy Agency says it will send a team to Syria to investigate reports of a secret nuclear site that was bombed by Israeli jets last year.