Ted Talk: Alex Steffen On The Shareable Future Of Cities [Video]

The co-founder of Worldchanging.com discusses neighborhood-based green projects.

Writer and public speaker Alex Steffen, one of the world’s leading voices on sustainability, social innovation and planetary futurism, gave a recent talk at TED Global 2011. In ‘The shareable future of cities,’ he discusses how cities can help save the future and highlights some environmentally-friendly projects.

Alex Steffen

Photo by Luc Van Braekel