Every day, the global population increases by around 200,000 people. Most live in urban areas, so for perspective, imagine a city the size of Seattle sprouting every four days, or a new Tokyo every month. By 2050, Earth is projected to be home to ten billion people. To feed them, we will need to increase crop production by at least 60 percent. Yet climate change, water scarcity, and soil erosion will force us to rethink how we grow crops. And rampant urbanization, with so many people living far away from agricultural areas, will force us to find more efficient ways to distribute food.

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