Although a little air pollution can bring out brilliant colors in sunsets, most of it just causes a washed-out haze. Learn how both sunsets and smog work in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/environmental/green-science/smog-sunset.htm

What Do A.M., P.M., and SOS Stand For?
09:18

How Do Fainting Goats Work?
09:04

Why Does Albania Have Hundreds of Thousands of Bunkers?
08:00