FOCUS: Sustainability

THE SUSTAINABILITY CHANNEL

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What Cities Can Learn From Toronto's Green Roof Policy

Already, 1.2 million square feet of green space have been added to the city.

Reuters

One Thing Missing from the Urban Farm Movement: Farmers

With few skilled farmers, many urban gardens become victims of neglect.

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Why Smart Growth Can't Be the Only Answer

Smart growth policies are important, but they're not enough.

SERIES

City Makers: Global Stories

The people and ideas reshaping urban life

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Green Infrastructure Could Save Cities Billions

New estimates find that moving toward sustainability can greatly reduce energy and water treatment costs.

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How Building Beautiful Spaces Can Foster Environmentalism

A focus on placemaking can drive the green movement.

Flickr/John Bracken

Why Is a Patent Troll in Luxembourg Suing U.S. Public Transit Agencies?

ArrivalStar claims it invented live transit alerts. Your apps, taxpayer dollars, and the open data movement are all at stake.

Reuters

What Makes Some Cities Greener Than Others

The economic factors behind pollution and greenhouse gas emissions.

Flickr/ La Citta Vita

What Developers Get Wrong About Smart Growth

Cities need higher densities, but they also need green space.

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.

Reuters

Why Bigger Cities Are Greener

Denser, more populous cities are more energy efficient than their smaller counterparts.

Walmart

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.

Traffic Explained in Less Than 4 Minutes

A video on what causes congestion, and how to fix it.

Reuters

Which Cities Tend to Be the Greenest? The Answer May Surprise You

Some metropolitan areas emit much more CO2 than others.

Living City Block

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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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?