Can cosmic rays affect cloud condensation nuclei by altering new particle formation rates

@inproceedings{Pierce2009CanCR,
  title={Can cosmic rays affect cloud condensation nuclei by altering new particle formation rates},
  author={Jeffrey R. Pierce and Peter J. Adams},
  year={2009}
}
] Although controversial, many observations havesuggested that low-level cloud cover correlates with thecosmic ray flux. Because galactic cosmic rays have likelydecreased in intensity over the last century, this hypothesis,if true, could partly explain 20th century warming, therebyupsetting the consensus view that greenhouse-gas forcinghas caused most of the warming. The ‘‘ion-aerosol clear-air’’ hypothesis suggests that increased cosmic rays causeincreases in new-particle formation, cloud… CONTINUE READING

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Empirical evidence for a nonlinear effect of galactic cosmic rays on clouds

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