Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
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
Moist air holds heat better than dry air.
114
Oak trees are struck by lightning more than any other tree.
266
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
Contrary to popular belief, lightning travels from the ground upwards not from the sky downwards.
101