And how the part-political, part-psychological problem can be avoided.
Big box stores are in desperate need of reinvention. But a handful of communities might have figured out the fix.
Natural coastal ecosystems are protecting twice as much coastline and 1.4 million people from climate risks.
A top Chechen rebel is urging militants to "do their utmost to derail" the Games.
Dazzling power structures both old and new, photographed by an expert.
Putin's biggest critic talks about the troubles facing the Sochi Winter Olympics.
No mayor can get a project this ambitious done on his own, and that's a huge problem for everyone.
A group of local tribes halted construction on the Belo Monte Dam for the second time this month.
That's about a quarter the size of Oklahoma's state budget.
Guess your location using Streetview.
The city receives hundreds of requests a year to purchase the signs.
Both President Obama and Rep. Paul Ryan propose cutting non-defense discretionary spending to a historic low.
Anthropologist Robin Nagle on the vital, hidden, and arcane sanitation system that enables cities to function.
This latest gaping chasm is said to measure four-stories deep.
A federal agency worries they could aid terrorists. But really, they expose our vulnerabilities.
Finding worlds in aging infrastructure.
And you probably can't even smell it.
Publicly owned Internet infrastructure is luring jobs to smaller towns. Should big cities follow their lead?
A crippling cyber attack that shuts down our power grid and poisons our water? Not so impossible anymore.