The Earth sees about 760 thunderstorms every hour, scientists have calculated.
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Dirty snow melts faster than clean.
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Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
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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.
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The winter of 1912 was so cold that Niagara Falls froze over.
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The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
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Snowiest city in the U.S. : Blue canyon, California.
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