Acting locally to make a difference globally

SimCity has been a tried and true simulation that allows you to create cities that thrive based on the choices you make while developing it.  In 2013, SimCity promises to publish a game geared more toward 'green' issues "Slated for release in 2013, the new SimCity invites players to grapple with tough choices about energy generation, environmental costs and the responsibilities shouldered by inhabitants of a planet with finite resources -- choices faced by real policymakers on the very real planet Earth." (http://www.scientificamerican.com/article.cfm?id=simcity-2013-players-face-tough-energy-environment-choices)  

EnerCities: A SimCity-Style Look at Environmental Issues, found on FaceBook, also promises to deal with environmental issues in order to create a successful city. (http://www.insidesocialgames.com/2009/12/08/enercities-a-sim-city-style-look-at-environmental-issues/)