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How Istanbul Will Define This Decade

Istanbul is on pace to become Europe's most populous metro between 2017 and 2018. How will the city handle it?

These Maps Lay Out Exactly Where to Find California's Gold

Guides for prospectors, circa 1848.

Los Angeles Is Overdue for a More Powerful Earthquake Than We Thought

Supercomputers reveal a natural channel in the earth that could bring potent shaking to the megacity.

The U.S. Has a Social Mobility Problem, But Not the One You Think

A child's chances of reaching the middle class aren't declining. But whether they get there depends a lot on where they live.

Americans Are Deeply Divided Over What Causes Poverty in the First Place

Which makes doing something about it all the more difficult.

This 100-Year-Old Idea Could End San Francisco's Class War

A century-old idea to rethink how we tax land.

The Amazing Endurance of Slums

Despite major advances, the world's slum population will likely double to 2 billion by 2050.

Why Old Post Offices Still Matter

These iconic buildings are great for a city's character and downtown vitality. But they're quickly disappearing.

The Midwest Is Running Dangerously Low on Propane

And prices are up 50 percent since last week.

Australia Should Probably Get Used to These Devastating Heat Waves

Climate change will mean more frequent and more powerful El Niños, say researchers.

Extending the School Day Is a Lot Harder Than It Seems

Chicago's new plan to keep kids in school longer has been challenged by budget cuts and safety concerns.

Detroit's Latest Plan for Financial Solvency Goes Bust

A judge rejected they city's proposal to offer gambling revenue as loan collateral.

Maps

How the Western World Enables China's Air Pollution

Americans and Europeans are partly to blame for the smog floating over the Pacific, say researchers.

The Growth of College Grads in Dead-End Jobs

The rise of the baristas.

Maps

This Warped Map Shows Global Warming's Biggest Offenders

International boundaries look a lot different when you judge a country by its greenhouse-gas emissions.

The Danger of Telling Poor Kids That College Is the Key to Social Mobility

Higher education should be promoted as an opportunity to experience an intellectual awakening.

Why So Many Emerging Megacities Remain So Poor

How globalization has changed the nature of urban development.

Congress Just Started Caring About the Sharing Economy

A friendly first hearing on Capitol Hill.