Topic: Emissions
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Maps
The Forgotten Urban Transportation Problem We Should Be Trying to Fix
Freight is crippling metro areas, but it's rarely part of city planning.
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5 Sustainable Infrastructure Projects Other Cities Might Want to Copy
BRT-Lite in Lagos, zero-carbon in Masdar, recycling in Curitiba, and more.
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L.A.'s 'Carmageddon' Produced Dramatic, Instantaneous Air Quality Improvements
Researchers measuring pollution during last year's 405 closure find air quality improved by as much as 83 percent.
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An Eye on Megacities' Dirty Skies
New monitoring techniques are improving our understanding of pollution in the developing world
