At Resource Management's Materials Recovery Facility, workers pull plastic bags, other trash and large pieces of cardboard off the conveyor belts before the mixed, single-stream recyclables enter the sorting machines. Véronique LaCapra/St. Louis Public Radio hide caption

itoggle caption Véronique LaCapra/St. Louis Public Radio

Workers at Los Alamos National Laboratory used organic cat litter to clean up nuclear waste. The litter triggered chemical reactions that later caused a drum to burst. Department of Energy/Flickr hide caption

itoggle caption Department of Energy/Flickr

A 2008 view of the leading edge of the Larsen B ice shelf, extending into the northwest part of the Weddell Sea. Huge, floating ice shelves that line the Antarctic coast help hold back sheets of ice that cover land. Mariano Caravaca /Reuters/Landov hide caption

itoggle caption Mariano Caravaca /Reuters/Landov

Not so ugly, eh? Supposedly imperfect produce rescued and reclaimed for consumption by Bon Appetit and Better Harvests. Far left and far right: Courtesy of Ron Clark/Better Harvests. Center three images: Courtesy of Bon Appétit Management Company hide caption

itoggle caption Far left and far right: Courtesy of Ron Clark/Better Harvests. Center three images: Courtesy of Bon Appétit Management Company

The male Asian subterranean termite (brown abdomen) and the female Formosan subterranean termite (orange abdomen) are surrounded by their hybrid offspring (eggs, larvae, workers, soldiers) in an eight-month-old colony. Thomas Chouvenc/University of Florida hide caption

itoggle caption Thomas Chouvenc/University of Florida

These beans, grown on test plots at the International Center for Tropical Agriculture in Colombia, can thrive in temperatures that cripple most conventional beans. Courtesy of CIAT/Neil Palmer hide caption

itoggle caption Courtesy of CIAT/Neil Palmer

Central Illinois corn farmer Jerry McCulley refills his sprayer with the weedkiller glyphosate on a farm near Auburn, Ill. A new assessment of the chemical finds that the (uncertain) risks mainly affect the people who work with it or who come in direct contact with areas where it's applied. Seth Perlman/AP hide caption

itoggle caption Seth Perlman/AP

A recently rescued sea turtle recovering on the banks of the San Gabriel River. Sanden Totten/Southern California Public Radio/KPCC hide caption

itoggle caption Sanden Totten/Southern California Public Radio/KPCC

Neil deGrasse Tyson with a Cambodian cricket rumaki canape, wrapped in bacon. "I have come to surmise, in the culinary universe, that anytime someone feels compelled to wrap something in bacon, it probably doesn't taste very good," he said skeptically before taking a bite. Carole Zimmer for NPR hide caption

itoggle caption Carole Zimmer for NPR