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
Rain contains vitamin B12.
188
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
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
Snowiest city in the U.S. : Blue canyon, California.
112