date:Jul 18, 2013
a critical food security risk if major exporters experience disruptions due to non-food diversions, plant diseases and climate impacts, according to the article.
The researchers studied trade patterns from 2000-2009 and determined that the U.S. is by far the largest exporter, exporting four times as much maize as Argentina, the next largest exporter. Drs. Felicia Wu of Michigan State University and Hasan Guclu of the University of Pittsburgh use network models -- essentially, food trade maps -