How to feed a hungry world : Nature

With the world’s population expected to grow from 6.8 billion today to 9.1 billion by 2050, a certain Malthusian alarmism has set in: how will all these extra mouths be fed? The world’s population more than doubled from 3 billion between 1961 and 2007, yet agricultural output kept pace — and current projections (see page 546) suggest it will continue to do so. Admittedly, climate change adds a large degree of uncertainty to projections of agricultural output, but that just underlines the importance of monitoring and research to refine those predictions. That aside, in the words of one official at the Food and Agriculture Organization (FAO) of the United Nations, the task of feeding the world’s population in 2050 in itself seems “easily possible”.

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