Over the last few years, the evidence that sunspots on our sun are directly related to climate change on earth has been steadily increasing.
I explained the exact proposed mechanism in some detail previously. Great work in this field is being carried out by Dr Henrik Svensmark and coworkers in Denmark and elsewhere.
Briefly, the mechanism is that cosmic rays impact on the earth from deep space. These cosmic rays penetrate our atmosphere and lead to the formation of cloud cover. The cosmic rays nucleate sites in the atmosphere, from which clouds form from the natural water vapour.
