I love Paris in the springtime: and the summer: and the fall: Okay, I just love Paris! One thing that even further endears that gorgeous city to me is the residents' active pursuit of the green transition. First it was a free bicycle-lending program. Now, they are actually starting to run the city on geothermal power with is 100% renewable!

Say what you want about the French, but when it comes to new alternative-energy practices, they are cutting-edge.

Implications - Hot water iwll be pumped from the underground up to ground level and distributed into residential homes for use. The geothermal water has a temperature of 135 degrees and can be used to heat up additional water and to heat radiators. City officials expect the project to be completed by the end of 2011.