Topic: Greenhouse Gas Emission
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Are Food Trucks Worse for the Environment Than Storefronts?
It's not easy to compare them, but we're giving it a shot.
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Urban Wonk
Can We Please Stop Pretending Cars Are Greener Than Transit?
Freakonomics revives a tried, and tired, debate.
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Videos
A Streetlight Powered by Algae: Is This Actually Possible?
The French biochemist behind this strange green light sees it having a "massive" palliative effect on global warming.
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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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The Climate Plans That Aren't Helping Reduce Greenhouse Gas Emissions
A new study finds citywide plans are not as effective as smaller-scale initiatives.
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Finding the Route of Least Emissions
Experts are working on models that would bring green-routing to your GPS
