After a 10-year study, scientists have allayed environmentalists fears by confirming that GM crops will not become super-weeds by crossbreeding with wild plants and invading the habitat of conventional crops. Alongside conventional crops in twelve different UK habitats, researchers from the Imperial College, London, planted GM potato, maize, sugar beet and oilseed rape. Their results, contrary to those of Canadian studies on GM rape, showed that GM crops were actually overtaken by conventional weeds, and died out earlier than the conventional crops.