“Parasitic” Drones Filter CO2 Pollution

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Here are some creepy drones that may someday perch on the neon billboards in Hong Kong and other large cities cleaning the air. They’re actually pretty ingenious, spreading their wings during the day to suck up pollution. At night they release the CO2 to produce fuel and to fertilize tiny plants growing on their wings. A miniature farm! See pictures and an explanation of how the drones could work on the Next Page.


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