Supercomputers reveal a natural channel in the earth that could bring potent shaking to the megacity.
The U.S. mountain lion population is on the rise for the first time in a century. And more are finding their way into populated areas.
A fascinating project on advertising and public space.
This year, there's virtually no powder on the ground in the drought-stricken state.
It’s 407 feet in diameter.
Not GEDs. Diplomas.
A short documentary follows a 27-year veteran of the LAPD.
The film may be set in L.A., but cars take a back seat.
This outdated tradition may cause new mayors more headaches than its worth.
The city is cracking down on jaywalking.
A carefully controlled study of the Expo line shows that vehicles miles dropped 40 percent.
From now on, the city's building code will require new residential construction to include "cool roofs" capable of reflecting sunlight.
Levels of pollution exposure can vary dramatically within a city.
Car culture may not be making us sick. Cities aren't necessarily healthier than suburbs.
A project mapping every pool in Los Angeles raises awkward questions about the tradeoff between privacy and big, public data.
What today's appointment means for the future of crime fighting in New York.
Attitudes toward public transportation and concerns about safety have a huge influence over whether or not a person rides.
Los Angeles is the latest city to consider a ban on providing meals to the homeless in public.
And other eye-popping comparisons.