Denver: A citywide plan

Launched by Mayor John Hickenlooper, the innovative Greenprint Denver plan is a vision for the city. And it’s no lightweight PR effort: Denver plans to reduce greenhouse gas emissions 10% across the community by 2012 and 25% overall by 2020.

One day, residents may be able to take a zero-emissions bus to commuter rail and light rail (a combined total of 122 miles of new tracks are planned), then hop on a bike from Denver B-cycle, a citywide bike-sharing program, and arrive at a LEED-certified office building.