-40 degrees Celsius is equal to -40 degrees Fahrenheit.
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Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
Men are 6 times more likely to be struck by lightning than women!
194
Dirty snow melts faster than clean.
350
The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
442
The Earth sees about 760 thunderstorms every hour, scientists have calculated.
185