BY THE year 2050, Earth will be home to another 2 or 3 billion more people. The most vexing question is: How will we feed them all? Not only will there be more people, but everyone will have more money to spend on food. Where, on this ever more crowded planet, will we grow all of it?
By 2050, the world’s farmers will need to supply almost twice as much food as they do today, according to an analysis by the World Wildlife Fund. Put another way, we will need to produce as much food in the next 40 years as have in the last 8,000.