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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-40 degrees Celsius is equal to -40 degrees Fahrenheit.
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Snowiest city in the U.S. : Blue canyon, California.
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Moist air holds heat better than dry air.
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Contrary to popular belief, lightning travels from the ground upwards not from the sky downwards.
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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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