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1 .This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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2 .Clouds. They're fluffy, white, and full of mystery.
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3 .I really don't know clouds at all.
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4 .Although scientists may have a better handle on clouds, even they don't know it all.
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5 .Because a new study shows that atmospheric gases can help clouds form in a way no one had ever considered.
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6 .That's according to a report in the Proceedings of the National Academy of Sciences.
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7 .Clouds form when water vapor condenses around dust particles in the atmosphere.
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8 .But there's more to the sky than just water and dust.
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9 .The atmosphere is loaded with trace amounts of a variety of carbon-containing gases.
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10 .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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11 .And they found that the gases coat the particles and make them more "soapy,"
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12 .which enhances their ability to form cloud droplets.
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13 .Because clouds reflect incoming sunlight, the findings could lead to better climate models.
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14 .And maybe another look at clouds.
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15 .I've looked at clouds from both sides now.
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16 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.
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