More or Less: Behind the Stats - WS MoreOrLess: The future of food

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"In the next 40 years, humans will need to produce more food that they did in the previous 10,000," claimed a recent edition of The Economist. Ruth Alexander and Hannah Moore look at whether this is true. With the world's population expected to reach 9 billion by 2050, how confident can we be that everyone will have enough to eat? This programme was first broadcast on the BBC World Service.

Published on Saturday, 7th March 2015.

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