A team at the Danish National Space Center has discovered how cosmic rays from exploding stars can help to make clouds in the atmosphere. The results support the theory that cosmic rays influence Earth’s climate.
Note: This new work is a severe blow to proponents of the enhanced greenhouse hypothesis and advocates of Anthropogenic Global Warming who worked hard to deny solar influence on global climate.
http://www.space.dtu.dk/English/Research/Research_divisions/Sun_Climate/SC_Getting_closer_to_the_cosmic_connection_to_climate.aspx