|Nir Shaviv and Henrik Svensmark (HERE)|
|The Solar System's passage through the Milky Way (HERE)|
The Sun of course also plays an important role in the formation of clouds: When there are a lot of sunspots, the magnetic fields of the Sun are emitting more charged particles, called the solar wind. The solar wind fights and neutralizes the cosmic rays and controls how many of them reach the Earth. During the 20th century the magnetic activity of the Sun has almost doubled. As a result fewer cosmic rays reach the Earth, the cloud cover became thinner and the Earth’s climate warmer.
|Nir Shaviv (HERE)|
Sources: Henrik Svensmark and Eigil Friis-Christensen, astrophysicists, Danish National Space Institute (DTU Space), Copenhagen | Nir Shaviv, astronomer, Racah Institute of Physics, Hebrew University of Jerusalem | Jan Veizer, geologist, Department of Earth Sciences, University of Ottawa and Institute for Geology, Mineralogy and Geophysics, Bochum Ruhr University | Jasper Kirkby (2011): The CLOUD experiment at CERN [65 m] | Lars Oxfeld Mortensen (2007): The Cloud Mystery - Henrik Svensmark on Climate Change [53 m] | Martin Durkin (2007): The Great Global Warming Swindle [76 m]