As ever-larger "megacities" become home to more and more of the world's people, the supply chains that bring essential supplies to these crowded populations will become increasingly complex.
Long commute times and urban areas that leapfrog over open space make it harder for people to socialize, but cities that are decentralized are even worse, University of Utah researchers say in a study published online today ...
Recycling entrepreneur Tom Szaky is stubbing out the world's cigarette problem—one butt at a time.
(AP)—At its prime, the space shuttle Endeavour cruised around the Earth at 17,500 mph (28,160 kph), faster than a speeding bullet.
How do denser neighborhoods affect property values? And what's the economic value of walkable neighborhoods?
(AP) -- The sidewalk lanes for the digitally distracted may be a joke but officials in Philadelphia want the public to know the issue is no laughing matter.