Los Angeles

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The Cougar Next Door

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.

Thomas Alleman

Why This Man Is Photographing Every American Apparel Billboard in L.A.

A fascinating project on advertising and public space.

NASA/NOAA

The Case of California's Disappearing Snow

This year, there's virtually no powder on the ground in the drought-stricken state.

The Forum

The World's Largest Vinyl Record Spins Atop an L.A. Concert Venue

It’s 407 feet in diameter.

Los Angeles Public Library

The L.A. Public Library Is About to Start Offering High School Diplomas

Not GEDs. Diplomas.

The Life of a Los Angeles Homicide Detective

A short documentary follows a 27-year veteran of the LAPD.

Warner Brothers Pictures

How Mass Transit Helps Convey the Future in 'Her'

The film may be set in L.A., but cars take a back seat.

Reuters

Should Cities Ditch Their Mayoral Mansions?

This outdated tradition may cause new mayors more headaches than its worth.

AP/Reed Saxon. Illustration by Quartz.

In Los Angeles, Walking Illegally Is More Than Twice as Expensive as Parking Illegally

The city is cracking down on jaywalking.

Reuters

Definitive Evidence That L.A.'s New Light Rail Line Reduces Driving

A carefully controlled study of the Expo line shows that vehicles miles dropped 40 percent.

Google Maps

Los Angeles Bans Heat-Sucking Roofs

From now on, the city's building code will require new residential construction to include "cool roofs" capable of reflecting sunlight.

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Your Neighborhood Significantly Influences the Air You Breathe

Levels of pollution exposure can vary dramatically within a city.

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We Don't Know Nearly As Much About the Link Between Public Health and Urban Planning As We Think We Do

Car culture may not be making us sick. Cities aren't necessarily healthier than suburbs.

Benedikt Groß and Joseph Lee

The Deeply Private Information Hidden in Plain Sight

A project mapping every pool in Los Angeles raises awkward questions about the tradeoff between privacy and big, public data.

REUTERS

Bill Bratton Will Head the NYPD. Can He Keep Bill de Blasio's Stop-and-Frisk Promise?

What today's appointment means for the future of crime fighting in New York.

AP

Why Correcting Misperceptions About Mass Transit May Be More Important Than Improving Service

Attitudes toward public transportation and concerns about safety have a huge influence over whether or not a person rides.

Reuters

Why U.S. Cities Have Been Making it Harder to Feed the Homeless

Los Angeles is the latest city to consider a ban on providing meals to the homeless in public.

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3 U.S. Metro Areas Have Economies Larger Than Sweden

And other eye-popping comparisons.

OSM

Tracing the World's Most Complicated Roadways With GPS Data

How highway interchanges become beautiful color-coded open-source maps.