The study finds that Europe is decreasing chemical herbicide use and achieving even larger declines in insecticide use without sacrificing yield gains, while chemical herbicide use in the US has increased with GM seed.
In effect, Europe has learned to grow more food per hectare and use fewer chemicals in the process. The US choices in biotechnology are causing it to fall behind Europe in productivity and sustainability. The decrease in annual variation in yield in the US suggests that Europe has a superior combination of seed and crop management technology and is better suited to withstand weather variations. This is important because annual variations cause price speculations that can drive hundreds of millions of people into food poverty.