Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113
Oak trees are struck by lightning more than any other tree.
266
The winter of 1912 was so cold that Niagara Falls froze over.
35
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
Dirty snow melts faster than clean.
350
Moist air holds heat better than dry air.
114
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96