Older urban preservationists risk becoming urban fossils

For young urban advocates in Washington, D.C., change is good. Their elders, traumatized by the 20th century, have trouble looking forward.


6 ways to solve the ‘renter’s dilemma’ for home energy

If renters aren't staying and landlords aren't paying utility bills, who pays for home-energy improvements?


Can a neighborhood be too walkable?

Walk Score is an increasingly popular tool for measuring the livability of a neighborhood. But maybe more people would warm to the idea of density if it weren't quite so -- dense.


U.S. homes are right-sizing and greening

Are McMansions going the way of the Hummer? Not entirely, Kaid Benfield suspects, but he does think demand for them is dropping.


High-speed rail too expensive? Let’s go with bullet-speed buses [VIDEO]

President Obama's proposed high-speed train system will be replaced with a fleet of buses that will rocket along highways at speeds up to 165 mph (according to The Onion).


Bicycle vendors can help bring dead urban spaces to life

In China, peddlers who pedal sometimes improve poorly planned streets.

Business & Technology

Young greens, old greens, and cities

San Francisco Chronicle columnist John King has a smart piece on the "generation gap" between old-school environmentalists suspicious of urban development and younger greens who see density as essential.


A Tokyo house built on a piece of land the size of a parking space

In Japan, the trend toward tiny homes is driven by harsh economic reality more than any desire to live "sustainably." It's a good example of how people can adapt to a world of diminishing resources -- the same world we …


9 things I learned by shadowing a home-energy inspector

Everyone knows that weatherization is the super-duper-est economic policy ever. But forget policy for a moment. Let's look at how it works out in the real world.