Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
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The winter of 1932 in the US was so cold that Niagara falls froze completely solid!
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Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
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The speed of a typical raindrop is 17 miles per hour.
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Oak trees are struck by lightning more than any other tree.
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The Earth sees about 760 thunderstorms every hour, scientists have calculated.
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