Colorado passes the Renewable Energy Initiative. A precedent-setting victory for renewable energy, the bill requires the state's largest electric companies to increase their use of renewable sources such as wind, solar, biomass, geothermal, and small hydro from less than two percent today to 10 percent by 2015. Amendment 37 is expected to save Coloradans $236 million by 2025, create 2,000 jobs, and significantly reduce gas prices in the state.

New York City agrees to issue taxi medallions for hybrid cars, the latest in a string of victories for the "Green Fleets" movement. Earlier, legislators in Charlotte, NC voted to hybridize the city's municipal fleet, and Denver, Seattle, and Madison have also made strides in converting their fleets to green.