Researchers estimate that the global population will level-out at nine billion people in 2050, adding over two billion more people to the planet. Since, one billion of the world's population (more than one in seven) are currently going hungry—the largest number in all of history—scientists are struggling with how, not only to feed those who are hungry today, but also the additional two billion that will soon grace our planet. In a new paper, published in Science, researchers make recommendations on how the world may one day feed nine billion people—sustainably.
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