Scientists who work for nuclear waste disposal projects in Finland, Canada and Sweden study an ice sheet in western Greenland. Courtesy of Vincent F. Ialenti hide caption

itoggle caption Courtesy of Vincent F. Ialenti

Laborers stand on a new ship at a Rongsheng Heavy Industries shipyard in Nantong, China, in 2012. The troubles at Rongsheng, China's largest private shipbuilder, mirror what's happening in the global industry. Aly Song/Reuters/Landov hide caption

itoggle caption Aly Song/Reuters/Landov