The Union of Concerned Scientists put out a report recently which runs down the last decade of genetically modified crops. As you know thats a topic that greatly concerns this website; what genetically modified crops have done to and for the world.
Although GMO crops have only been in use for about a decade, the report looks at this decade in terms of yield/production as well as the impact these crops have had on the environment. The results, as you can read and hear about, are poor for a technology that is supposed to save the world from hunger. In fact, it turns out there are a few other methods that have proven far more productive than genetically modified crops.
In this video entry I go over the biggest conclusions of the report. I recommend you also have a look for yourself, don’t just take my word for it.