Looking back one, two, and five years ago today on Worldchanging:
The Ruins of the Unsustainable: Searching For Answers to the Suburbs
A classic Worldchanging piece by Julia Levitt, in which she ponders Bruce Sterling and the future of suburbs...
Biomass Charcoal in Eastern DRC
Ethan Zuckerman looks at efforts designed to end the developing world's dependency on charcoal...
Joel Makower: Clean Energy -- It's Not About the Environment
Joel Makower asks "Why aren't you buying clean energy?" given all the benefits...