Because they fear CO2: "Transition towns will grow their own food, provide their own energy, start seed banks and tool libraries and even create a local currency"

I wonder what percentage of the local currency will be used to buy items that aren't tinfoil hats?

The Green Life: Movement plans for life without fossil fuels | The Poughkeepsie Journal | poughkeepsiejournal.com

For people involved in the Transition towns movement though, climate change is definitely happening and they are planning now to live in a world radically altered by its effects.

The Transition towns movement began in England six years ago with the idea that the planet cannot maintain its current pace of consumption of fossil-fuel energy, and that infinite growth within a finite system — Earth — was not possible. The idea behind Transition towns is to create a community that can sustain itself in the event of the inevitable loss of fossil fuels for energy.

Transition towns will grow their own food, provide their own energy, start seed banks and tool libraries and even create a local currency. According to the Transition Network website, there are now more than 1,000 Transition towns worldwide, and locally there are Transition groups in more than half a dozen places in Dutchess and Ulster counties, including Poughkeepsie, Rhinebeck, New Paltz, Marbletown, Kingston, Saugerties and Woodstock.
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“There are plans afoot in the town offices to have all of the government offices run on solar power,” Howells added.