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(article, Culinate staff)
As if farmers didn't have enough to worry about, what with the planet's seesawing crop demands and prices, some futuristic thinkers are already trying to come up with ways to feed the globe when demand really outstrips supply. A possible solution? As noted in the Christian Science Monitor, vertical farms might be a way to grow food on a tiny footprint of land. Sure, there'll be difficulties with light, water, and energy, but hey, it also might work. Check back in, say, 2050 to see how things are going.