How Planting More Trees Could Make Cities Cleaner

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As air pollution becomes a greater problem around the world, politicians and voters alike are scrambling for an answer. Some employ technology-based solutions, such as the Smog Free Tower, but the most effective method might be the lowest-tech of all: trees. Trees act as natural air filters, and can help with temperature regulation and dry air as well. See how well nature's original green innovators work, and keep scrolling for more about combatting pollution at home.

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Artificial Trees

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Smog Almost Killed New York City, Here's How

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