Chief Almir of Brazil's Surui tribe attends a press conference with Google representatives in Rio de Janeiro last year. Chief Almir has brought technology to his previously isolated people, who now use smartphones to send photos of illegal logging in the Amazon. Vanderlei Almeida /AFP/Getty Images hide caption

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An Arizona restaurant sold lion meat burgers in 2010 in an attempt to drum up business during the World Cup soccer tournament held in South Africa. Matt York/AP hide caption

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For the first time, new nationwide science standards recommend teaching K-12 students about climate change. iStockphoto.com hide caption

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Workers clear honey from dead beehives at a bee farm east of Merced, Calif. Marcio Jose Sanchez/AP hide caption

itoggle caption Marcio Jose Sanchez/AP

The city of Gladstone near the Great Barrier Reef is the world's fourth largest coal-export hub. Dredges, like one seen here, have turned the harbor brown as they work to expand the coal port. Richard Harris/NPR hide caption

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Ken Caldeira of the Carnegie Institution for Science takes a water sample during his experiment out on part of the Great Barrier Reef. The water is slightly pink because his team is using a dye to trace an acid-neutralizing chemical as it flows across the reef. Richard Harris/NPR hide caption

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Farmers harvest a sugar beet crop in Gilcrest, Colo. Matthew Staver/Landov hide caption

itoggle caption Matthew Staver/Landov