'Sun not responsible for climate change'

The strongest evidence to date that the sun is not responsible for recent global warming has been set out by scientists.

The new study by Prof Michael Lockwood of the Rutherford Appleton Laboratory, near Oxfordshire, and Claus Fröhlich of the World Radiation Center in Davos, Switzerland, overturns claims by climate sceptics who say that the planet's climate has long fluctuated and that current warming is just part of that natural cycle - the result of variation in the sun's output and not greenhouse gas emissions. Their study appears in the Proceedings of the Royal Society A.

The study found that global warming since 1985 has been caused neither by an increase in solar radiation nor by a decrease in the flux of galactic cosmic rays.
http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/07/11/scisun111.xml