Living in a small space can sometimes cramp your green style

Living in a small home without a car limits the amount we consume and pollute. But green living can sometimes get in the way of -- well, green living.

Does it matter if the developed world has hit 'peak travel'?

A recent study found that travel has stagnated in eight developed countries, including the U.S. But what about the rest of the world?

The 'War on Cars': A brief history of a rhetorical device

Back in October, I started noticing the accusation that Seattle is waging a "war on cars" was popping up an awful lot in the local press, and in suspicious ways. Where did this inflammatory language come from?

In St. Paul, one citizen's mission to keep sidewalks clear of snow

A resident of St. Paul, Minn., was disturbed by the condition of the city's sidewalks during the snowy season. She finally got mad enough to act.

Measuring the historical diversity of a neighborhood

Can the historical "character" of a neighborhood be measured somehow, the way that tools like Walk Score measure walkability?

CityVille overtakes FarmVille as Facebook's top app

Millions of Americans are hooked on Zynga's new city-building game. Are there any real urban-planning principles at work?

Do roads pay for themselves? Well, no

A new report from the U.S. Public Interest Reseach Group debunks the myth of the self-financed highway system. Will Congress be convinced by the facts?

The year ahead in bikes

Elly Blue looks into her crystal ball and sees more bike lanes, more bike-sharing, more e-bikes -- and the best year ever for two-wheelers in the U.S.

IBM heads to Rio with its Smarter Cities program

IBM has partnered with Rio de Janeiro to create an operations center that will give the Brazilian city's emergency-management team access to a vast array of data.