As the Paris climate talks get underway, one of the cities with the most notorious air pollution problems is experiencing its worst smog of the year.
China's air quality is so bad, scientists estimate the health problems associated with it claim 1.6 million lives a year, or about 4,000 a day.
Here's what the air looked like on November 30 and December 1, the first two days of the climate talks.
UP NEXT: Slimy green algae is taking over China's beaches for an alarming reason
In Beijing, air pollution often leaves the city covered in a thick smog, as seen surrounding this statue of pandas on Tuesday, December 1.
Here's what that pollution looked like, as seen from space, on Monday, November 30. The fog is tinged gray and yellow because of the air pollution.
China's had a pollution problem for years, as a result of rapid industrialization that started in the 1950s. It's gotten so bad that in some areas, its impact on your health is equivalent to smoking 40 cigarettes a day.
(Source)
See the rest of the story at Business Insider