WorldChanging Team: By Zufan* Editor's Note: We encourage "Reader Reports" -- submissions from members of Worldchanging's global audience who volunteer to write up their notes from...

WorldChanging Team: By Mary Catherine O'Connor What will bike-friendly cities look like ten years from now? As citizens around the world raise the demand for human-powered...

Reader Report From the World Cities Summit Bike, Meet the City. City, This is the Bike. Walk Score: Every Big-City Neighborhood in America

Imagine What Comes After Green Environment, Attitudes, and Behavior Robot Snakes, Smart Farmers, Flying Ships and a Different Sort of Science Fiction Cowpooling and Super-Spikes, New Words Help Define Our World