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Title: Scientific American, September 2011

Author: Scientific American

Narrator: Mark Moran

Format: Highlights

Length: 1 hr and 21 mins

Language: English

Release date: 09-01-11

Publisher: Scientific American

Ratings: 4.5 of 5 out of 5 votes

Genres: Science & Technology, Magazine & Radio

Publisher's Summary:

In this issue:

"Street Savvy": Meeting the biggest challenge starts with the city.

"The Social Nexus": The best way to harness a citys potential for creativity and innovation.

"Global Bazaar": Todays street markets and shantytowns are forging the worlds urban future.

"Castles in the Air": Why building skyscrapers makes sense on many levels.

"How Green Is My City": Why retrofitting is the best way to clean up urban living.