The Earth sees about 760 thunderstorms every hour, scientists have calculated.
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Oak trees are struck by lightning more than any other tree.
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-40 degrees Celsius is equal to -40 degrees Fahrenheit.
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The speed of a typical raindrop is 17 miles per hour.
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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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