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8 cities where cleanliness rules

By: Josh Lew on Nov. 11, 2013, 5:08 p.m.
Copenhagen, Nyhavn, cleanest cities

Photo: Bucchi Francesco/Shutterstock

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Copenhagen

Already quite clean by world standards, Copenhagen has taken steps to decrease littering with new trash and recycling schemes that make it easier to find public garbage bins and recycling cans. The Danish capital also stands out because of its air quality, hopes to be carbon neutral by 2025, and already has a number of impressive green traits, including a long-term plan to make itself the world's most bike-friendly city.