The science of smog - Kim Preshoff
The science of smog - Kim Preshoff
TED-Ed Lesson: On July 26, 1943, Los Angeles was blanketed by a thick gas that stung people’s eyes and blocked out the Sun. Panicked residents believed their city had been attacked using chemical warfare. But the cloud wasn’t an act of war. It was smog. So what is this thick gray haze actually m…