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This is Scientific American 60-Second Earth. I'm Christopher Intagliata. Got a minute?

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You might think of weather as a local or regional phenomenon.

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But when it comes to lightning storms, what happens 93 million miles away¡ at, you guessed it, the Sun¡ can actually affect the frequency of thunderbolts.

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That's according to a study in the journal Environmental Research Letters.

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"So the Sun is essentially a bar magnet.

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And as it rotates around half the time its field points towards the Earth and half the time its field points away from the Earth."

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Study author Mathew Owens, an environmental physicist at the University of Reading in the U.K.

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He and his colleagues analyzed lightning strikes in the U.K.over a six-year period.

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And they found that when the Sun's magnetic field was pointed away from the Earth, lightning strikes in the U.K went up 50 percent.

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Owens says what they think is happening is the Sun's magnetic field affects the Earth's magnetic field, stretching and skewing it, which allows more cosmic rays to hit the atmosphere.

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That's important, because cosmic rays can trigger lightning.

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"Some groups in America do outrageously cool things like fire rockets with metal wires attached to them into clouds.

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And that directly triggers the lightning.

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thus the lighting then has a nice conducting metal wire to travel land

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Nature doesn't do that, of course.

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But cosmic rays serve a similar purpose.

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"These energetic particles that are coming from space essentially produce thin channels of ionization that behave like a thin metal wire.

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And that enables lightning to occur from the bottom of the cloud to the Earth."

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These types of studies could eventually improve lightning forecasts, Owens says.

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And since lightning strikes are predicted to increase in a warming world¡ we may end up seeing less of the Sun itself¡ but more of its electrifying influence.

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Thanks for the minute, for Scientific American's 60-Second Earth. I'm Christopher Intagliata.

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