Cities

Worldchanging’s bright green contribution

The site recognized, before much of the environmental movement did, that cities are hotbeds of innovation, leadership, and people who have internalized a sustainability ethic.

While climate talks drag on, cities must adapt or die

In cities like Norfolk, Va., rising sea levels are not a hypothesis -- they're an unpleasant reality that has to be dealt with, now.

The most secure bike lock in the world (16-second video)

The drawbacks seem to be (1) it looks a little heavy to carry around and (2) if I were a bike thief, I can't imagine a challenge more fun to take on than stealing a bike suspended 20 feet in …

‘The science of public transit is not too complicated’

Don't habit, social pressure, perceptions about what's pleasant and safe all affect which mode of transport people choose?

The best 9 steps toward oil independence

The Mobility Choice Coalition ranks the most effective ways to reduce transportation-oil dependence in a new report.

What the green building industry requires (in one paragraph)

The technology is available. There are loads of talented designers and architects eager to design buildings and places that make more sense than the ones they were born into. What's lacking is money.

Why do you love the place you live? We want to know

Tell us what makes you care about the place you live, or the place where you grow up. We'll publish your responses.

Confessions of a recovering engineer

Taking highway standards and applying them to urban and suburban streets costs us thousands of lives every year.

Find out where your city is most walkable with Walk Score's new heat maps

Walk Score rolled out new heat maps for the 2,500 largest American cities, providing a quick way to get a sense of where cities are most walkable.