WorldChanging Team: Looking back one, two and five years ago today on Worldchanging: 2009 San Francisco Carves a Park from the Midst of Its Pavement Streetfilms presents...

WorldChanging Team: Helium-powered ships could be carrying freight – and even passengers – in as little as a decade's time. (An example of the future of airship...

WorldChanging Team: by James Cameron The Copenhagen climate summit ended six months ago in what was widely seen in the clean tech and environmentalist communities as a...

WorldChanging Team: Looking back one, two and five years ago today on Worldchanging: 2009 Planetary Boundaries and the New Generation Gap A classic piece by Alex Steffen,...

Amanda Reed: Geoengineering is fast becoming a mainstream debate. For some, the most worrisome thing about geoengineering is the idea that, once people know about it, they...

WorldChanging Team: Looking back one, two and five years ago today on Worldchanging: 2009 China Recruits Algae to Combat Climate Change Jonathan Watts reports on a groundbreaking...

Geoff Manaugh: For a stunningly realized thesis project submitted last month at the University of California, Berkeley, Taylor Medlin focused on what he called "Towards a...

WorldChanging Team: An economic transformation to rival the Industrial Revolution is on its way – and this time nature will be properly valued, predict John Elkington and...

WorldChanging Team: Looking back one, two and five years ago today (give or take!) on Worldchanging: 2009 Reader Report: The World's First Real Time Carbon Counter Bryan...

Joe Romm: A new Center for American Progress (CAP) report by Sean Pool presents the “network lifecycle” approach to clean energy innovation. The paper shows how the...

Alex Steffen: (Urban Renewal #5, City Overview From Top of Military Hospital, Shanghai, 2004. By photographer Edward Burtynsky; used with permission.) If we want to anticipate...

Amanda Reed: Two years ago, Worldchanging listed “Human Footprint” in its Holiday Gift Guide, but as far as I could tell no one here had offered...

WorldChanging Team: Looking back one, two and five years ago today on Worldchanging: 2009 Interview with IRENA Director General Nominee Hans Jǿrgen Koch Ben Block interviews Hans...

Amanda Reed: Adeena Schlussel at Next Billion has just published a series on energy for the base of the pyramid (BoP), which she hopes will be a...

Regine Debatty: Can airspaces be owned and activated by the public? What is the size of the airspace you can own? How can we employ wind farms...

Green Futures: by Sam Jones These spiraling skyscrapers are part of a self-sustaining urban ecosystem proposed for London by Team Chimera (Pierandrea Angius, Alkis Dikaios, Thomas...

WorldChanging Team: Looking back one, two and five years ago today on Worldchanging: 2009 Special Innovation Zone: Imagination Without Regulation Alex Steffen looks at the social inertia...

Green Futures: From pulp to paper is a thirsty process. Can the industry shrink its water mark? by Anna Simpson Knock a glass of water over a...

WorldChanging Team: Looking back one, two and five years ago today on Worldchanging: 2009 Beth Kolko and Design for Digital Inclusion Ethan Zuckerman reports on Beth Kolko...

YES! Magazine: Around the world, people are taking control of their water supply. by Maude Barlow, Anil Naidoo, Meera Karunananthan Everybody needs water as much as they...