Top 10 greenest cities in North America

It seems like we get a new list of greenest, most climate-change-prepared, most bike-friendly etc. cities every week or so. But we never really get tired of looking at these rankings, and checking them against each other to decide where …

Gigantic, gorgeous visualization of humanity's transport footprint on planet Earth

It's the Atlantic, as you've never seen it before: Cities are red, shipping routes blue, roads green and air networks in white. Click on the image to see the full map of the entire planet.

Why Poughkeepsie is a great place to wait for the end of the world

Towns like Poughkeepsie, New York may appear charmless, but they could be ideal places to live in a post-peak oil world.

Why Broke-Ass is a patriot

Broke-Ass goes off on bicycle lanes, Northern Europe, and the smugness of the eco-movement in general, before telling a few stories about what makes this country great.

Are energy subsidies really in danger?

Has energy-subsidy reform become more likely in recent days and weeks? That would be nice, but don't hold your breath.

When it comes to green, what you buy matters more than where you live

Get off your high horse, New Yorkers! City dwellers might do some environmental good by driving less and living in smaller spaces. But living in a city doesn't affect a person's carbon footprint as much as the amount that he …

Remembrance of cities past: spectacular photos of the way we lived

Photographer Burton Holmes created gorgeous photographs that documented urban life before the rise of the automobile. Could they help us to recapture some of what we have lost?

What does the reverse Great Migration mean for urbanism?

African-Americans are leaving Northern cities and heading back to the South. What kind of life will they lead there?

Awesome idea: Bike repair vending machine

Did you get a flat, forget your snacks, or break a light while tooling down the Greenway in bike-friendly Minneapolis? No worries -- just stop by the Bike Fixtation, a one-stop bike-shopping outpost. You can buy a patch kit or some …