
Continuing with the series in conjunction with the Johannesburg Summit 2002 from Aug 26 to Sept 4, this article asks: How do we feed six billion people every day for as long as they live? Take your pick: the Green Revolution, large plantations, and the new great 'green' hope biotechnology. But the first two are environmentally suspect, and the third is plagued by safety issues. Best to plant our hopes in a fourth choice agroforestry.