Chilton, UK (July 1, 2007)- A study published in the Proceedings of the Royal Society A confirms that the Sun is not the cause of recent global warming. The study, performed by Mike Lockwood, a physicist at the Rutherford Appleton Laboratory in Chilton, UK, and Claus Frohlich of the World Radiation Center in Davos, Switzerland, shows that neither an increase in solar radiation nor a decrease in the flux of galactic cosmic rays could have caused the warming observed since 1985.
Lockwood said that misleading media reports ‘galvanized’ him to carry out the study. “This paper is the final nail in the coffin for people who would like to make the Sun responsible for present global warming,” says Stefan Rahmstorf, a climate scientist at the Potsdam Institute for Climate Impact Research in Germany.
Some researchers have suggested that galactic cosmic rays may influence cloud formation, and therefore be associated with global warming. Drawing on 100 years of solar data, Lockwood and Frohlich looked for a correlation between solar activity and global mean temperatures. Since the mid 1980’s, trends in solar irradiance, sunspot number, and cosmic ray intensity have been in the opposite direction required to explain global warming.
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