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Dr. Curtis Chan, a dentist in Del Mar, Calif., loads up a truck with 5,456 pounds of candy to deliver to Operation Gratitude during the Halloween Candy Buyback on Nov. 8 last year. Chan personally collected 3,542 pounds of candy from patients. Courtesy of Curtis Chan hide caption

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Courtesy of Curtis Chan

Cash For Halloween Candy? Dentists' Buyback Program Is Booming

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After a hard day of bruising battle, ancient gladiators reached for a post-workout drink, according to an ancient account. New research backs that up. Stefano Bianchetti/Corbis hide caption

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Stefano Bianchetti/Corbis

The homeless and others in need enjoy lunch at the Los Angeles Mission on Nov. 23, 2011, in celebration of Thanksgiving. Legislation to ban organizations from serving food to homeless people in public places has been proposed in Los Angeles. Frederic J. Brown/AFP/Getty Images hide caption

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Frederic J. Brown/AFP/Getty Images

A Haitian woman holds cherries from a coffee tree. Haiti's coffee trade was once a flourishing industry, but it has been crippled by decades of deforestation, political chaos and now, climate change. Patrick Farrell /MCT /Landov hide caption

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Patrick Farrell /MCT /Landov

Climate Change Has Coffee Growers In Haiti Seeking Higher Ground

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Researchers say there's plenty the beef industry can do to use less land and water and emit fewer greenhouse gas emissions. But producers may need to charge a premium to make those changes. iStockphoto.com hide caption

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iStockphoto.com

Definitely not traditional: two colorful takes on porridge, from Friday's London Porridge Championships. Dai Williams/Courtesy of the National Porridge Championship hide caption

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Dai Williams/Courtesy of the National Porridge Championship

Sherman is still experimenting with the type of food he'll serve in the restaurant. Recently he made this walleye filet with sumac and maple sugar, a white bean and smoked walleye croquette and toasted hominy. Becca Dilley/Courtesy of Heavytable.com hide caption

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Becca Dilley/Courtesy of Heavytable.com