Trainees with Royal Dutch Shell learn to deploy oil spill booms in the waters near the port of Valdez in Alaska. The company is training about 200 spill responders. Richard Harris/NPR hide caption

itoggle caption Richard Harris/NPR

Notice how some of these tomatoes have unripe-looking tops? Those "green shoulders" are actually the keys to flavor. pocius/Flickr.com hide caption

itoggle caption pocius/Flickr.com

Barbara and Norman Roux stand in front of cattle pens on their farm outside of Moundridge, Kan., where she has raised cattle for nearly 70 years. Peggy Lowe/Harvest Public Media hide caption

itoggle caption Peggy Lowe/Harvest Public Media