Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
Moist air holds heat better than dry air.
114
Snowiest city in the U.S. : Blue canyon, California.
112
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113
The speed of a typical raindrop is 17 miles per hour.
181
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
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96