Ever see those signs that say, "If you lived here, you'd be home by now"? They're usually affixed to urban revitalization projects located near mass transit hubs (of course you're commuting another hour to your sprawl development in the 'burbs when you read it).
Those projects represent a part of the city of tomorrow, but look a bit farther afield to get the full picture of what life could be like in a clean, sustainable city of the future — and of the business opportunities that are hidden within.
In East London, for example, the organizers of the 2012 Olympics are restoring a massive industrial wasteland into an efficient eco-city. A million cubic meters of contaminated dirt has been converted into parkland, nearly 3,000 apartments, and shopping centers, all with high tech amenities and smart energy meters to make future improvements plug-and-play. Biomass boilers with efficient waste-heat capture will power much of the development at first, but clever "energy centers" will make it possible to add solar or other renewables in the future.