http://www.transitionnetwork.org/

Follow the principles laid out by transition network.org

Here is a video explaining Transition Cities:

http://www.transitionnetwork.org/support/what-transition-initiative

The principles of the Transition Network are:

"A Transition Initiative (which could be a town, village, university or island etc) is a community-led response to the pressures of climate change, fossil fuel depletion and increasingly, economic contraction. There are thousands of initiatives around the world starting their journey to answer this crucial question:

How can we make our community stronger and happier as we deal with the impacts of peak oil and economic contraction while at the same time urgently reducing CO2 emissions?"

Transition Networks and the website describe a process undertaken by a community to decrease dependence on fossil fuels thereby decreasing CO2 emissions and building healthier communities.