Eco-Friendly Carts Pop Up in D.C.

"June 11 (Bloomberg) -- The bright green ``On the Fly'' food cart with a large decorative wing parked in Washington's Chinatown seems to be in the wrong city.

Offering hummus, vegetarian tacos and organic teas, the cart and its menu are in stark contrast to the aging metal-box stands nearby that sell bags of cheese popcorn, candy bars and hot dogs. A street-food revolution is under way in Washington, which has long trailed cities like Philadelphia, famous for its street-cart cheese steaks, and New York, where vendors offer everything from kebabs to crepes."

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