The city of Portland, Oregon, has launched the first comprehensive citizen carbon dioxide reduction program in the nation. By embarking on a 30-day 'low carb diet,' Portland residents can lose 5,000 pounds-of household carbon dioxide emissions. In the campaign's initial phase, 50 households racked up CO2 savings of some 200,000 pounds. For more information, visit www.sustainable portland.org/energy_glo_cool.html.