Failure to yield: evaluating the performance of genetically engineered crops

Genetic engineering has been promoted as an important means for dramatically improving the yields of staple food crops, but there is little evidence to support such a claim. In Failure to Yield, the Union of Concerned Scientists provides the most comprehensive evaluation to date of more than two decades of U.S. genetic engineering research and commercialization aimed at increasing crop yield. The analysis shows that despite tremendous effort and expense, genetic engineering has only succeeded in measurably increasing the yield of one major food or livestock feed crop