SustainLane, known for its ranking of greenest US cities, is looking for short essays on sustainable urban living. Here are a few ideas from the contest guidelines:  

• Tell us the story about the commuter
  rail that doesn’t exist (voted down yet again). Would it run near your
  neighborhood, if it did?
• Tell us about the successes. Does
  the city leadership have the right idea? Are there projects run by
  nonprofit organizations or businesses worth mentioning?
• Tell us about the champions of sustainability in your city. Who’s already doing it the right way?

Essays should be 500 words. Accepted entries will be rewarded with $100 and publication on a new urban sustainability web site.

Further details and the entry form are here.