What CERN really said: organic particles affect clouds more than cosmic rays do

Collection of CERN quotes with clickable links:


http://www.rsc.org/chemistryworld/News/2011/August/24081102.asp
Scientists thought that [cosmic ray] factors alone could explain cloud formation, but CLOUD has proved other vapours must be involved.
Kirkby says the only other condensable atmospheric vapours are organic compounds.
[....]
The CLOUD team will now try to identify which organic species are responsible for aerosol nucleation.

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http://www.nature.com/nature/journal/v476/n7361/full/nature10343.html
Role of sulphuric acid, ammonia and galactic cosmic rays in atmospheric aerosol nucleation

Atmospheric aerosols [ ie particles from plants and animals? ] exert an important influence on climate1 through their effects on stratiform [clouds]
[....]
We find that ion-induced binary nucleation of H2SO4–H2O can occur in the mid-troposphere but is negligible in the boundary layer. However, even with the large enhancements in rate due to ammonia and ions, atmospheric concentrations of ammonia and sulphuric acid are insufficient to account for observed boundary-layer nucleation.

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http://www.rsc.org/chemistryworld/News/2011/August/24081102.asp
Scientists thought that [cosmic ray] factors alone could explain cloud formation, but CLOUD has proved other vapours must be involved.
Kirkby says the only other condensable atmospheric vapours are organic compounds.
[....]
The CLOUD team will now try to identify which organic species are responsible for aerosol nucleation.

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http://press.web.cern.ch/press/PressReleases/Releases2011/PR15.11E.html
“It was a big surprise to find that aerosol formation in the lower atmosphere isn’t due to sulphuric acid, water and ammonia alone,” said Kirkby. “Now it’s vitally important to discover which additional vapours are involved, whether they are largely natural or of human origin, and how they influence clouds. “

might be useful

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