By looking at climate change as a clean energy generation problem, we're setting ourselves up not to solve it..

It's not just enough to survive. We've got to make something better than what we've got..

Clean air and water, a diversity of animal and plant species, soil and mineral resources, and predictable weather are annuities that will pay dividen….

I think we're going to start to see a new model of civic advocacy where people get together once in a while to protest, but it's more about an ongoin….

To be young and aware is to know you’re being lied to; to know that a bright green future is possible; to know that we can reimagine the world, rebui….

Carbon zero simply means that the emissions you are releasing either are zero or balance out to zero..

Copenhagen has done a remarkable job creating streets that are focused on bicycles and pedestrians..

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….

You don't change the world by hiding in the woods, wearing a hair shirt, or buying indulgences in the form of 'Save the Earth' bumper stickers. You d….

We get so little news about the developing world that we often forget that there are literally millions of people out there struggling to change thin….

At its very heart, Worldchanging is about using the best of people's new ideas, bringing them together and applying them to the massive problems that….

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

Cities generate most of the global economy, and most of its energy use, resource demands and climate emissions. How we build cities over the next dec….

We have to craft new political realities, not only in places like India, Afghanistan, Kenya, Pakistan, but here at home as well. Another world is pos….

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….

Urban retrofitting: creating different sorts of spaces and uses out of places that are already there..

Powerful people doing bad things LIKE cynical, despairing citizens..

Deep walkability describes a city that is built in such a way that you can move from one area to another on foot, on bicycle, on transit and have an ….

By fundamentally changing how we design the places and systems that enable our daily lives, we can slash emissions way beyond the immediate carbon sa….

Cities offer us powerful leverage on our most stubborn, wasteful practices. Long commutes in our cars, big power bills from our energy-hogging buildi….

Cabbies in particular seem to like discussing the fate the Earth..