Dirty snow melts faster than clean.
350
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185
-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
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
It snows more in the Grand Canyon than it does in Minneapolis, Minnesota.
113