http://online.wsj.com/article/SB1000142 ... TopStories
Jeff Hohensee, a sustainability consultant, invested $125,000 in home-energy upgrades—though with rebates, his cost was $35,000—so his home uses only as much energy as solar panels on his roof produce. To spur neighbors to follow suit, he suggests the city measure every home's carbon footprint and publicize the results.
In 2006, Boulder voters approved the nation's first "carbon tax," now $21 a year per household, to fund energy-conservation programs. The city took out print ads, bought radio time, sent email alerts and promoted the campaign in city newsletters.
But Boulder's carbon emissions edged down less than 1% from 2006 through 2008, the most recent data available.
This one is my favorite!
City officials say most residents want to make these changes; they just never seem to get around to it. In a test run in a lower-income Boulder neighborhood, nearly 70% of homeowners accepted the free upgrades. "We want to take away the financial barrier and the hassle barrier," said Kara Mertz, the city's local environmental action manager.