The True Cost of Coal

Coal accounts for more than half of America's electricity because it is so cheap—and it remains cheap because no one pays the very large hidden costs of its mining and burning

Not Fanatics and Not Friends

The leaders of post-revolutionary Iran may claim to be keeping the faith—but they know how badly they need the West. What should we do when they say it's time to let bygones be bygones?

In Search of Monster

In a chilling autobiography a former gang member portrays himself as the inevitable product of a hellish environment. The truth is more interesting.

How the World Works

Americans persist in thinking that Adam Smith's rules for free trade are the only legitimate ones. But today's fastest-growing economies are using a very different set of rules. Once, we knew them—knew them so well that we played by them, and won. Now we seem to have forgotten


Video

Where Time Comes From

The clocks that coordinate your cellphone, GPS, and more

Video

Computer Vision Syndrome and You

Save your eyes. Take breaks.

Video

What Happens in 60 Seconds

Quantifying human activity around the world

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