... "The United Nations' Food and Agriculture Organization predicts the world will need to produce 70% more food by 2050 to feed its population. But growth in agricultural production is expected to slow to 1.7% a year in the decade to 2020, compared with an annual 2.6% in the previous decade, according to its latest estimates.
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Not to minimize a serious concern. 39 times 1.7% [assumes immediate reduction rather than whatever the actual decline rate may be] equals 66.3% according to my cellphone calculator, meaning a shortfall of 2.7% to address over the next 39 years, assuming the growth in production rate holds, of course. The biological sciences and all forms of food production have shown remarkable ability to improve yields - so far.
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