Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
The winter of 1912 was so cold that Niagara Falls froze over.
35
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
There is enough energy in one bolt of lightning to power a home for two weeks!
102
Dirty snow melts faster than clean.
350
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
Rain contains vitamin B12.
188