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Bacteria ! The Main Ingredient in Snowflakes, Scientists Say

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Bacteria ! The Main Ingredient in Snowflakes, Scientists Say
Topic: Science 7:56 pm EST, Feb 29, 2008

One might rethink playing with snow or walking in the rain as a new study by scientists from the Louisiana State University revealed that snow and rain might form mostly on bacteria in the clouds.

Scientists have long known that the ice crystals in clouds, which become rain or snow, need to cling to some kind of particle, called ice nucleators, in order to form in temperatures above minus 40 degrees Celsius.

Microbiologist Brent Christner at Louisiana State University sampled snow from Antarctica, France, and the Yukon and found that as much as 85 percent of the nuclei were bacteria, he said in a telephone interview with the Associated Press.

“Every snow and ice sample we’ve looked at, we found biological ice nucleators. Here’s a component that has been completely ignored to date,” Christner said.

The most common bacteri

Bacteria ! The Main Ingredient in Snowflakes, Scientists Say



 
 
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