10 Cities aim for 100% Renewable Energy

By Sami Grover, Mother Nature Network.

As I recently reported over at TreeHugger, a new grassroots movement has launched petitions in hundreds of cities across the world calling for a transition to 100 percent renewable energy/zero emissions by 2050 at the latest. While this may have sounded like wishful thinking a few short years ago, these activists are actually building on a growing number of communities that have already taken such pledges — and some who appear to have achieved them.

So who are these leaders in the clean energy world?