Crossing the street in Delhi can be a tricky proposition. Photo by [Satbir] via Flickr.
With just 139 cars for every 1,000 residents -- compared to 209 in New York City, and a whopping 765 in the United States as a whole -- many parts of Istanbul are already clogged with traffic. More residents name congestion as a problem than any other concern -- although 80 percent of those without a car say they...Read the full story on TreeHugger
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