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Solving climate change will be difficult but worth it
Aggressive climate mitigation is absolutely worth the costs, but economic models are not a good guide to how difficult it might be.
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2014 was the safest year to walk in NYC since 1910
Mayor Bill de Blasio's plan to cut pedestrian deaths to zero begins to make a little headway, building off a long-term trend.
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Tree simple tricks for making our cities cooler
By planting 30,000 trees, Melbourne, Australia, could lower its core temperature by 7 degrees. How cool is that?
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Urban planners may have finally found how to get to Sesame Street
With "equitable development," planners say they've finally figured out how to make sustainable, healthy neighborhoods accessible to everyone.
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Here’s how we’re ruining one of the world’s largest lakes
Global warming and overfishing are killing Lake Victoria, leaving locals to scramble for solutions.
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Where Americans and scientists disagree, in one chart
Climate change, vaccines, GMOs: Where Americans just don't get science.
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Terrifying video shows smog taking over the earth
NASA scientists tracked atmospheric currents for a year, and found increased air pollution was linked to stronger storms. Yipes.
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Want free public transportation? Here’s what would happen
The main goal of transportation that costs riders nothing — getting people out of their cars — can't be achieved by eliminating fares.
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Can urban foraging actually feed poor people?
Urban foraging won't fill you up or provide miraculous cures, and you'll end up with lots of very bitter greens, but it could be the perfect solution for food deserts.
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London is building Europe’s longest bike superhighway
The billion-dollar "segregated cycleway" will stretch approximately 18 miles directly through the center of the city.