Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
Dirty snow melts faster than clean.
350
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
Rain contains vitamin B12.
188
Moist air holds heat better than dry air.
114
Contrary to popular belief, lightning travels from the ground upwards not from the sky downwards.
101
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113