Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
Men are 6 times more likely to be struck by lightning than women!
194
Dirty snow melts faster than clean.
350
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113
Moist air holds heat better than dry air.
114
