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Science, Tech & Environment

This backcountry cook you've never heard of is a legend at Yosemite National Park

Ever heard of Sing Peak in Yosemite National Park? Turns out, it has nothing to do with music. It honors the park's Chinese immigrant past — and an amazing backcountry chef named Tie Sing. A park ranger at Yosemite did some digging and unearthed the hidden history of Sing and the immigrants who helped create the park we know today.

Science, Tech & Environment

What deteriorating air quality looks like around the world

The Chinese government announced Monday that it plans to take more than five million vehicles off the road to improve air quality, including 330,000 cars in Beijing. This announcement comes only weeks after the World Health Organization announced that only 12 percent of cities reporting on air quality meet their standards for safe levels. With the help of our newsroom designers, we put together a list of places recently affected by deteriorating air quality and incidents of smog.