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The Environmental Protection Agency has outlined a new effort to help protect and restore the Chesapeake Bay, the nation's largest estuary. And it targets the root causes of the trouble: runoff.

Anyone who owns a home on a hillside knows the value of keeping nearby brush at a minimum. But how do you do that? One answer is goats. They're quiet. They're agile. And they're champions when it come

For analysis of news and events from Africa, Farai Chideya talks with Edmond Keller, professor of political science and director of the Globalization Research Center on Africa at UCLA. This week, they discuss violence erupting in eastern Congo and South Africa's ANC party electing a new leader.

Sweeney Todd, Derby Dolls, naked dance, White Buffalo and paper airplanes. It doesn't get more eclectic than this weekend in San Diego. We'll chat with our guests about all of their options for the weekend.

The National Academy of Sciences weighs in on a feud over global warming. At issue is a study that found the Earth is hotter now than it's been in a thousand years. Some use that as an argument that global warming has already pushed the world into extreme climate territory.

We'll examine the winners and losers in Tuesday's primary election and what the outcomes mean for San Diego County.

A federal judge rules against the teaching of intelligent design in Dover, Pa., schools. He says the concept is a "religious view" that has no place in science classrooms. The case could have important implications for the teaching of evolution in schools across the country.

A committee convened by the National Academy of Sciences says the Environmental Protection Agency's review of dangers posed by the chemical dioxin is flawed and needs to be reworked. Despite decades of research, scientists have been unable to agree for certain on whether dioxin causes cancer in humans.

Israel launches a military offensive into southern Lebanon following the capture of two soldiers by Hezbollah militants. Seven Israeli soldiers have died in the fighting. Nicholas Blanford, of The Christian Science Monitor, speaks with Madeleine Brand about the conflict.

For years scientists have used squid data to estimate how human brains use energy. Squid brains are easy to study, as some of their nerve signals are big enough to be seen by the naked eye. Now German scientists say these data are misleading, and they are working to set the record straight.