-40 degrees Celsius is equal to -40 degrees Fahrenheit.
96
The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
442
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
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Oak trees are struck by lightning more than any other tree.
266
The speed of a typical raindrop is 17 miles per hour.
181
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