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WASHINGTON, Feb. 28, 2017 鈥� There鈥檚 a new trend in agriculture called vertical farming. As humans learned to farm, we arranged plants outside in horizontal fields, and invented irrigation and fertilizer to grow bumper crops. But with modern technology and farmers鈥� cleverness, we can now stack those fields vertically, just as we stacked housing to make apartment buildings. Moving plants indoors has many benefits: Plants are not at the mercy of weather, less wilderness is cleared for farmland, and it鈥檚 easier to control the runoff of fertilizer and pesticides. But the choice of lighting can make or break the cost of a vertical farm and affect how long it might take for urban agriculture to blossom. Watch the latest Reactions video here: .

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The American Chemical 中国365bet中文官网 is a nonprofit organization chartered by the U.S. Congress. With nearly 157,000 members, ACS is the world鈥檚 largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies. Its main offices are in Washington, D.C., and Columbus, Ohio.