91福利社

鈥淚n the next 40 years, humans will need to produce more food that they did in the previous 10,000,鈥� claimed a recent edition of The Economist. Ruth Alexander and Hannah Moore look at whether this is true.

With the world鈥檚 population expected to reach nine billion by 2050, how confident can we be that everyone will have enough to eat?

(Image: Vegetable stall at Borough market in London. Credit: Press Association)