The rendering industry likes to call itself the world's oldest recycling system. Nearly 100 percent of processed pigs will eventually get used — as meat and in uses as varied as medicine and pet food. iStockphoto hide caption

itoggle caption iStockphoto

Artists' renderings of New Meadowland show how the wetland would be designed for human recreational use as well as flood control. The berm shown would be a path through the park when water was low (left). When storms came in, the wetlands would flood, and the berm would protect local development. Courtesy of New Meadowlands hide caption

itoggle caption Courtesy of New Meadowlands

A manatee swims underwater in the springs of Crystal River, Fla. — home to a group of residents who have sued the U.S. Fish and Wildlife Service, demanding that the agency consider removing the animals from the endangered species list. Amanda Cotton/iStockphoto hide caption

itoggle caption Amanda Cotton/iStockphoto

Ready-to-eat meals found in the prepared food aisle are a growing source of waste, as it is difficult to reuse meals that aren't sold but are fully cooked. Kristofor Husted/Harvest Public Media hide caption

itoggle caption Kristofor Husted/Harvest Public Media

Vera Cole is president of the Mid-Atlantic Renewable Energy Association, a group arguing against proposed rules in Pennsylvania that would put stricter limits on how much grid-connected solar power homeowners can produce on their property. Jeff Brady /NPR hide caption

itoggle caption Jeff Brady /NPR

The French enjoy horse meat — here's a horse meat butcher in Paris. But even the French were angry that they had been paying beef prices for it last year. Thomas Coex/AFP/Getty Images hide caption

itoggle caption Thomas Coex/AFP/Getty Images

This grocery store packet of porcini mushrooms contained a surprise: three species of fungi never before named or described. Bryn Dentinger/Royal Botanical Gardens, Kew hide caption

itoggle caption Bryn Dentinger/Royal Botanical Gardens, Kew

President Obama speaks at the U.N. Climate Summit on Tuesday. Discussing America's past, Obama told the group, "We recognize our role in creating this problem." Andrew Burton/Getty Images hide caption

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Bounty from the bin: Thaler says you can find plenty of tasty, edible produce that's tossed out. Plastic-wrapped produce tends to be a safe bet, he says. Courtesy of Maximus Thaler hide caption

itoggle caption Courtesy of Maximus Thaler