Those affected by wildfire smoke focus on the colors red, purple and maroon on the air quality charts. Red used to be the scariest color. Why did that change?(Story aired on ATC on June 28, 2023.) ...
This week, millions of Americans are anxiously scanning air quality maps focusing on two colors: red and purple. Red indicates "unhealthy" air quality, and purple? "Very unhealthy." When did purple ...
The color purple has long been a symbol of royalty, creativity, and mystery. But according to science, it's also something else: a figment of our imaginations. While it looks just as real as red or ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback