The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
442
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
Snowiest city in the U.S. : Blue canyon, California.
112
Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
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
Moist air holds heat better than dry air.
114