He has a radically different point of view
(1958) A physicist at the Danish National Space Center in Copenhagen who studies the effects of cosmic rays on cloud formation. His research led to the hypothesis that solar activity and cosmic rays are an indirect cause of global warming.
In 1997, Svensmark and Eigil Friis-Christensen proposed a theory (called cosmoclimatology) that variations in cosmic rays caused by the intensity of the solar wind directly affect the earth's climate, and that this and not increases in atmospheric CO2 is the main driver in the Earth's recent warming.
Svensmark on clouds and his problems getting published
1. For a more detailed explanation of Svensmark's theory, click here to read his 2007 paper Cosmoclimatology: a new theory emerges.
2. Click here to read Real Climate's critique of the paper.
3. Click here for Skeptical Science's equally critical take.