Dirty snow melts faster than clean.
350
Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
Moist air holds heat better than dry air.
114
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
Contrary to popular belief, lightning travels from the ground upwards not from the sky downwards.
101
Snowiest city in the U.S. : Blue canyon, California.
112