In this Oct. 5, 2013 photo, Derek Cross, a chef who specializes in cooking with hemp, demonstrates the burning properties of hemp oil, which he touts as a
In this Oct. 5, 2013 photo, Derek Cross, a chef who specializes in cooking with hemp, demonstrates the burning properties of hemp oil, which he touts as a digestible bio fuel, during the first known harvest of industrial hemp in the U.S. since the 1950s, at a farm in Springfield, Colo. (AP Photo/Kristen Wyatt)