Circumhorizontal arcs (loosely known as fire rainbows) are the rarest of all naturally occurring atmospheric phenomena.
21
Rain contains vitamin B12.
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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.
11
9 out of 10 lightning strike victims survive!
246
Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
106
The winter of 1912 was so cold that Niagara Falls froze over.
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