Written by Jonas Kathage
Despite the fact that the global area of GM crops has grown rapidly over the past decade and now encompasses more than 170 million hectares it is still questioned whether current applications of genetic engineering in agriculture are beneficial to farmers or not. While several reviews and meta-analyses on the impact of GM crops exist, the evidence is still not regarded as conclusive by many. A new meta-analysis of the agronomic and economic impacts of GMOs has appeared in the journal PLOS ONE. It summarizes the findings of 147 original studies published until March 2014. Besides being the most up to date, this meta-analysis has two other features that make it an important addition to the existing body of meta-analyses and review articles: First, it includes not only studies from peer-reviewed journals but also those that are not (grey literature), thus providing a broader perspective. Second, the authors investigated the reasons why different studies found different results, providing several interesting insights. Continue reading “A new meta-analysis on the farm-level impacts of GMOs”