Low cloud properties influenced by cosmic rays

Nigel Marsh, Henrik Svensmark

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    The influence of solar variability on climate is currently uncertain. Recent observations have indicated a possible mechanism via the influence of solar modulated cosmic rays on global cloud cover. Surprisingly the influence of solar variability is strongest in low clouds (less than or equal to3 km), which points to a microphysical mechanism involving aerosol formation that is enhanced by ionization due to cosmic rays. If confirmed it suggests that the average state of the heliosphere is important for climate on Earth.
    Original languageEnglish
    JournalPhysical Review Letters
    Issue number23
    Pages (from-to)5004-5007
    Publication statusPublished - 2000

    Bibliographical note

    Copyright 2000 American Physical Society


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