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On a recent trip to Senegal, independent journalist Bob Butler saw first-hand how climate change is devastating communities there and across the continent. He shares the remarkable story of his travels.

Nearly all Native Americans can trace part of their ancestry to just six women, whose descendants immigrated to North, Central and South America as much as 20,000 years ago, according to a new DNA study. Researchers believe the women left a DNA legacy that can be found in about 95 percent of native people throughout the Americas.

San Diego's only national monument, Cabrillo National Monument, is celebrating National Parks Founders' Day and San Diego County Public Lands Day with exhibitors from county parks at the lighthouse and visitors center.

Roxy Saint offers a lap dance to Robert Englund. Oh my! Zombie Strippers.

Teen Critic Reveals All (Well Almost) About Zombie Strippers

A federal judge has ordered the FBI to find and turn over unedited documents in the Oklahoma City bombing case. A Salt Lake City lawyer wants those papers because he says they could shed light on the death of his brother in a federal prison -- and because they could link bomber Timothy McVeigh to a white supremacist gang of bank robbers.

The City of San Diego's temporary winter homeless shelters will close today. Where will the hundreds of homeless who have used the shelter over the last few months go? We speak to the Bob McElroy, who operates the winter shelter, about the impact it has on the local homeless population.

Like wireless and biotech, cleantech is now an emerging hub in San Diego. The city is at the center of research focused on developing algae as a biofuel. We take a look at how the local industry has fared, where the green jobs are and how much progress has been made with algae.

Utah teenagers under the age of 18 must now get their parents' permission to visit a tanning salon, a change prompted by growing concern about the dangers of sun exposure to young people. Utah, which ranks in the top five in per capita deaths from melanoma, is joining 26 other states that regulate teenagers' use of tanning beds.

What impact could algae have on modern agriculture in the United States? Scientists around the country exploring the potential of algae as a biofuel. We talk to UCSD professor Stephen Mayfield about algae as a fuel source.