Smog

Flickr

The U.S. Faces Longer Summers of Worsening Ozone Pollution

Scientists have linked a warmer climate to a 70 percent increase in unhealthy summertime ozone levels.

CCTV

The Microscopic Beauty of Air Pollution

Viewed under an electron microscope, smog can look like snowflakes.

Even China Is Ragging on France's Air Pollution

It must sting when the world's biggest smog-hole is calling your air polluted.

Reuters

2013: The Year Deadly, Suffocating Smog Consumed China

It's not a new problem, but the country's struggle with air pollution has finally gone mainstream.

Shutterstock

Your Neighborhood Significantly Influences the Air You Breathe

Levels of pollution exposure can vary dramatically within a city.

@cnfocus/Twitter

Chinese Students Fight Smog With Kung Fu Aerobics

A school administrator says the workout can detoxify lungs and dispel residue gas.

NASA

China's Air Pollution Is So Awful You Can See It From Space

NASA captures a 750-mile trail of haze on camera.

Vogmask

China Keeps It Classy With Designer Smog-Filtration Masks

What pairs best with the Asian brown cloud? Try the "Vogmask."

Reuters

Air Pollution Has Shut Down a Major Chinese City

A lack of wind, corn burning for the harvest, and the onset of central heat fouled up Harbin's air so much that schools and offices had to close. 

Daan Roosegaarde/Dezeen

Could an 'Electronic Vacuum Cleaner' Suck Up Beijing's Smog?

A Dutch designer's innovative proposal for the pollution-ridden city.

Reuters

Can Drastic New Anti-Pollution Rules Help Clean Up Beijing's Air?

The city is rolling out a series of regulations to cut emissions over the next five years.

NASA

Aerial Views Show Just How Awful the Fire-Smog Over Singapore Has Become

And this could go on for several weeks.

Reuters

Indonesia Tells Singapore It's 'Behaving Like a Child' About Smog Coming From Indonesia

Record air pollution levels hit the city-state thanks to forest fires in its neighboring country.

Bill Bishop/Sinocism

Here's Exactly How Bad Beijing's Smog Crisis Is, In One Photo

China World Trade Center Tower III is more than 1,000 feet tall and can't be seen today in Beijing.

Reuters

How This Smoke Cloud Became the Ultimate Symbol of Greece's Depression

You don't need any statistics to fully grasp the depth of the economic crisis. You only need to know about the smoke.

NASA/NOAA

NASA Satellite Image Shows Beijing Drowning in a Lake of Smog

Air pollution has been particularly bad in China this week, with levels nine times above what the U.S. considers "unsafe."

Reuters

You Can Literally Hear What Pollution Sounds Like

A team of scientists assigned tones to different air pollutants. Here are the results.

Paul Hackett/Reuters

Is London's Air Up to Snuff?

How does England's air quality compare to that of past hosts, and could it affect athletes?

Reuters

Learning to Navigate a City of Smog

How I'm figuring my way around Beijing