Thirty years ago, genetic engineers hoped new technology would revolutionise world farming and reduce or even eliminate the need for fertilisers and pesticides. It was a noble idea that deserved success.But only promises came. In the 1990s the public was told genetic modification would increase yields enough to feed the world. Now in an age of climate change we hear that GM can reduce climate change emissions, improve drought tolerance,stimulate growth and eliminate poverty. John Vidal fears that after tens of billions of dollars of public and private research and development money have been spent by some of the world’s most powerful companies, GM has met a dead end.Read more here.