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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.

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Clouds. They're fluffy, white, and full of mystery.

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I really don't know clouds at all.

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Although scientists may have a better handle on clouds, even they don't know it all.

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Because a new study shows that atmospheric gases can help clouds form in a way no one had ever considered.

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That's according to a report in the Proceedings of the National Academy of Sciences.

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Clouds form when water vapor condenses around dust particles in the atmosphere.

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But there's more to the sky than just water and dust.

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The atmosphere is loaded with trace amounts of a variety of carbon-containing gases.

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To see how these organic gases might affect cloud formation, scientists mixed them with aerosolized particles, and then loaded the particles into an experimental cloud chamber.

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And they found that the gases coat the particles and make them more "soapy,"

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which enhances their ability to form cloud droplets.

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Because clouds reflect incoming sunlight, the findings could lead to better climate models.

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And maybe another look at clouds.

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I've looked at clouds from both sides now.

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Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.

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