It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
Moist air holds heat better than dry air.
114
Dirty snow melts faster than clean.
350
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
Contrary to popular belief, lightning travels from the ground upwards not from the sky downwards.
101