Cities

Stop climate change: Move to the city, start walking

Climate change is helped along by suburban driving culture. We need to embrace cities -- and walking

Jeff Speck 40 Topics: Books, New York, Cities, Climate Change, Hurricane Sandy, Walking

Suburbs, slums and city centers could grow by more than a million square kilometers -- much of it home to wildlife

David Biello, Scientific American Topics: Cities, Environmentalism, Urbanism, Scientific American, Poverty, Global Warming, Biodiversity