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
Rain contains vitamin B12.
188
In ten minutes, a hurricane releases more energy than all the world's nuclear weapons combined!
371
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185