When it comes to reducing pollution, the key isn't the number of trees you plant but where you plant them
A new study makes the fundamental case for congestion pricing
Researchers are using thermal imaging to diagnose energy efficiency in the built environment
Which city hall buildings manage to capture something specific about a city's culture?
8 European projects show how design and planning can reduce automobile dependence
20 mass transit maps worthy of hanging on your wall
London bike commuters found to breathe in more soot than pedestrians
After two summers in a row of disturbing group violence in cities like Chicago and Philadelphia, authorities look at the intersection of technology, poverty, and race
Most of the world's capacity for economic growth is centered in its metro areas. Which cities top the list?