An iceberg that likely calved from Jakobshavn Isbrae, the fastest glacier in western Greenland. Ian Joughin/Science/AAAS hide caption

itoggle caption Ian Joughin/Science/AAAS

The seeds of this goosefoot plant are known as quinoa, a superfood now in high demand and grown almost exclusively in South America. But some growers think they have the formula to grow it up north. Janet Matanguihan/courtesy Kevin Murphy hide caption

itoggle caption Janet Matanguihan/courtesy Kevin Murphy

Last year, Tom Mather caught 15,000 deer ticks in the woods of southern Rhode Island. "People really need to become tick literate," the University of Rhode Island researcher says. Brian Mullen for NPR hide caption

itoggle caption Brian Mullen for NPR

A forest near Trieste, Italy, is largely dead owing to drought stress during the summer of 2012. Andrea Nardini/Nature hide caption

itoggle caption Andrea Nardini/Nature

Hinkley, Calif., may soon become a ghost town as residents move away from contaminated water. Gloria Hillard for NPR hide caption

itoggle caption Gloria Hillard for NPR