NASA Satellite Images Reveal Dramatic Increase in Air Pollution Over China

NASA's Terra satellite acquired natural-color images of northeastern China on January 3 and January 14, highlighting a drastic shift in air quality for the region. According to the images, the opaque, gray areas tend to be clouds or fog, which are saturated with a gray or yellow tint as a result from the air pollution. Areas that are cloud-free appear gray and brown as a result from the smog that hides the cities below. Residual snow is also noted in the images.