In almost all city governments in America, the small group of people who don't want change are able to block change.

Cities offer us powerful leverage on our most stubborn, wasteful practices. Long commutes in our cars, big power bills from our energy-hogging buildings, shopping trips to buy stuff that'll spend a few short months in our homes and long centuries in our landfills.

By fundamentally changing how we design the places and systems that enable our daily lives, we can slash emissions way beyond the immediate carbon savings - because our own personal emissions are just the tip of a vast iceberg of energy and resources consumed far from our view.

There's no law of physics that says we have to be an unsustainable society - in fact, quite the opposite. The planet's ready to work with us if we're ready to think differently, but we do have to make that jump and start to do things in new ways.

Saying the Tech Bloom is not commercially driven is like saying Mother Teresa had an interest in the poor.

I think there's a gigantic generation gap in terms of how people understand the Internet and how much they think technology is an important factor in social change.

In almost all city governments in America, the small group of people who don't want change are able to block change.