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Reuters Poor design and over-development have put our burgeoning urban centers at serious risk.
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Should Seattle Really Be Growing Goji Berries and Jujubes?
The city embarks on an ambitious plan for an urban forest, with free food for all.
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Charts
Why Bigger Cities Are Greener
Denser, more populous cities are more energy efficient than their smaller counterparts.
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Charts
If Walmart Were a City
Worldwide, the retail giant's stores cover as much land as Miami.
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How to Green Southern Cities Built in the Age of Cars and Air Conditioning
U.S. cities in the South have their own set of challenges to face in going green. But Atlanta, for one, is trying.
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Videos
Traffic Explained in Less Than 4 Minutes
A video on what causes congestion, and how to fix it.
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Maps
Which Cities Tend to Be the Greenest? The Answer May Surprise You
Some metropolitan areas emit much more CO2 than others.
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The Big Fix
Greening an Entire Block Instead of Just One Building
Most smaller commercial buildings can't afford energy retrofits on their own. But what if they banded together?
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Urban Wonk
Is SoCal America's Next Environmental Success Story?
The region has a bad smart growth record. But a new sustainable communities strategy just might change all that.
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The Greenest Building May Actually Be a Neighborhood
A UCLA class is trying to apply a strict building standard to an entire community.
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The De-Bikification of Beijing
Cycling has dropped precipitously in China's capital. Will it ever be popular again?
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Videos
Can Native American Housing Be Sustainable and Culturally Appropriate?
The Sustainable Native Communities thinks so.
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Why This Chicago Non-Profit Wants Your Trash
They train the disadvantaged to transform garbage into beautiful furniture.
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Can a Sustainable Town Be Built From Scratch in the Middle of Nowhere?
A controversial proposal seeks to help revive Southern California's troubled Salton Sea.
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Urbanizing the Suburban Food Chain
How a Portland foodstuff distributor brought his company into the city.
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The Wisdom of Wastewater Recycling
With new water-conscious projects, Burbank is becoming a model of water reuse.
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Charts
The True Cost of Unwalkable Streets
Five charts can explain what the diabetes epidemic has to do with our current urban planning.
