“THE world’s attention is back on your cause.” That was Bill Gates talking to agricultural scientists gathered recently to honour the late Norman Borlaug, father of the Green Revolution. The tycoon-turned-philanthropist was right. This week, the world—in the guise of 60-odd heads of state including the pope—held the first United Nations food summit since 2002. As the world’s attention turns from the receding financial crisis, it is switching to one...

IN 1974 Henry Kissinger, then America’s secretary of state, told the first world food conference in Rome that no child would go to bed hungry within ten years. Just over 35 years later, in the week of another United Nations food summit in Rome, 1 billion people will go to bed hungry. This failure, already dreadful, may soon get worse. None of the underlying agricultural problems which produced a spike in...

For a man who will inherit vast tracts of fertile farmland in Punjab, India's grain bowl, Jaswinder Singh made what seemed to him a logical career move -- he took a job with a telecoms company in New Delhi. "I can't go back to the village after an M.B.A. Delhi has more money, better quality of life. The job is more satisfying, and you don't depend on the weather or...

More suggestions that biofuels are not an environmental free lunch ONCE upon a time, biofuels were thought of as a solution to fossil-fuel dependence. Now they are widely seen as a boondoggle to agribusiness that hurts the environment and cheats taxpayers. A report commissioned by the United Nations endorses neither extreme. It gives high marks to some crop-based fuels and lambasts others. Meanwhile, two papers published in Science, a leading...

The agricultural sector is both an emitter of greenhouse gases and a victim of global warming. Technological change, water utilisation and cropping pattern in agriculture have implications both for emission reduction and adaptation. While hydrocarbons and raw material-based industries contribute to global warming, their productivity is not necessarily affected by the phenomenon, as is the case in agriculture. Agricultural production impacts climate change and, in turn, is impacted by it....