If an old-fashioned food cart makes cities a little dirtier—belching clouds of diesel exhaust as you wait for your tacos—a new mobile coffee cart does the opposite. The cart runs on solar and wind power and moves around the city on bike wheels. And it actually cleans the air directly around it, via an air purifier. The coffee cart, from a Swedish startup called Wheelys, is the fourth iteration of a design that’s meant to…
This coffee cart-on-a-bike franchise cleans the air as it brews
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