Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
Rain contains vitamin B12.
188
The speed of a typical raindrop is 17 miles per hour.
181
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
In ten minutes, a hurricane releases more energy than all the world's nuclear weapons combined!
371
Carbon dioxide is a trace gas and by itself will produce little warming. Also, as CO2 increases, the incremental warming is less, as the effect is logarithmic so the more CO2, the less warming it produces.
11
The winter of 1912 was so cold that Niagara Falls froze over.
35
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113