A global report of Friends of the Earth shows that genetically modified (GM) crops have failed to address the main challenges facing farmers in most countries of the world. It notes that the 'second generation' GM farm crops has failed to appear. GM crops commercialised today have on the whole increased rather than decreased pesticide use, and do not yield more than conventional varieties. The environment has not benefited, and GM crops will become increasingly unsustainable over the medium to long term.