Stanford researchers measure African farm yields using high-resolution satellites
Stanford researchers have developed a new way to estimate crop yields from space, using high-resolution photos snapped by a new wave of compact satellites.The approach, detailed in the Feb. 13 issue of Proceedings of the National Academy of Sciences, could help estimate agricultural productivity and test intervention strategies in poor regions of the world where data are currently extremely scarce.
New doubts on whether early humans were forced to start farming
The development of agriculture is universally believed to underpin some of the most significant advances made by humans worldwide. In New Guinea, where one of the earliest human experiments with tropical forest agriculture occurred, researchers have cast doubt on two views about the origins of agriculture.