Union of Concerned Scientists: GMO’s Do Not Increase Yield

Genetic engineering has been touted as a major solution to the global hunger problems that are expected to worsen as the world’s population grows. But a new analysis of this industry’s nearly 20-year record in the United States shows that, despite proponents’ claims, genetic engineering has actually done very little to increase the yields of food and feed crops. Given such a track record, it appears unlikely that this technology will play a leading role in helping the world feed itself in the foreseeable future ….

http://www.ucsusa.org/sites/default/files/legacy/assets/documents/food_and_agriculture/failure-to-yield-brochure.pdf