Testing the proposed causal link between cosmic rays and cloud cover

Bibliographic Data

ID15544762
AuthorsT Sloan (Lancaster University, corresponding author), A W Wolfendale (Durham University)
Year2008
Volume3
Issue2
Pages024001-024001
Publication date2008-04-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueEnvironmental Research Letters (JOURNAL)
Journal identifiersISSN: 1748-9326 • E-ISSN: 1748-9326
PublisherIOP Publishing (PUBLISHER • GB)
DOI10.1088/1748-9326/3/2/024001
OpenAlexW2106547837
LanguageEN
Citations received7
References cited16

A decrease in the globally averaged low level cloud cover, deduced from the ISCCP infra red data, as the cosmic ray intensity decreased during the solar cycle 22 was observed by two groups. The groups went on to hypothesise that the decrease in ionization due to cosmic rays causes the decrease in cloud cover, thereby explaining a large part of the presently observed global warming. We have examined this hypothesis to look for evidence to corroborate it. None has been found and so our conclusions are to doubt it. From the absence of corroborative evidence, we estimate that less than 23%, at the 95% confidence level, of the 11-year cycle change in the globally averaged cloud cover observed in solar cycle 22 is due to the change in the rate of ionization from the solar modulation of cosmic rays

Astrophysics · Atmospheric sciences · Cloud computing · Cloud cover · Cosmic ray · Cover (algebra · Ionization · Nuclear physics · Physics · Plasma · Solar cycle · Atmospheric Ozone and Climate · Computer Science · Environmental Science · Solar and Space Plasma Dynamics · Solar Radiation and Photovoltaics