Ancient societies hold lessons for modern cities

Today's modern cities, from Denver to Dubai, could learn a thing or two from the ancient Pueblo communities that once stretched across the southwestern United States. For starters, the more people live together, the better ...

Billion-plus people to lack water in 2050: study

More than one billion urban residents will face serious water shortages by 2050 as climate change worsens effects of urbanization, with Indian cities among the worst hit, a study said Monday.

Mapping food deserts

(PhysOrg.com) -- Maps are great for showing where things are. They’re also good for showing where things aren’t.

Oak trees in Southern U.S. cities are natural urban air filters

Researchers at the University of North Texas have found that two oak tree species, post oak and live oak, that are widespread across the U.S. South remove black carbon from the urban atmosphere. The findings may offer a natural ...

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