One of the things that is clear from most climatical research--when sunspots are rare, the earth cools. I know, I know some hysteriacs try to say the sun has little impact on the earth's climate. History simply doesn't support them. The period called the Little Ice Age, which was the last time glaciers advanc ed and actually over ran towns which had been inhabited from the beginning of history, was a period of time also known as the Maunder Minimum-- a period when there were almost no sunspots.
The mother of all spotless runs was of course the Maunder Minimum. This was a period from October 15, 1661 to August 2, 1671.
It totaled 3579 consecutive spotless days. That puts our current run at 17.5% of that of the Maunder Minimum.
By the standard of spotless days, the ongoing solar minimum is the deepest in a century: NASA report. In 2008, no sunspots were observed on 266 of the year’s 366 days (73%). To find a year with more blank suns, you have to go all the way back to 1913, which had 311 spotless days (85%):
It was about the Little Ice Age/Maunder Minimum that this was said:
"Villages built in what had been considered safe places were overwhelmed by glaciers in the early 17th century. Several of these villages are still ice-covered today."~G. H. Denton and S. C. Porter, "Neoglaciation", Scientific American, June 1970, p. 102
Anyone who has looked out side over the past couple of years, should know that the weather has been cooler than the global warming hysteriacs would have us believe. I believe that it is because we have had few sunspots over the past few years. During each solar minimum the sun often has no sunspots. Plots of the spotless days show that this solar minimum has been exceptionally low in solar activity. Below is a chart showing a comparision of the number of spotless days per month for the last few solar cycles. Each curve starts the month before the first spotless day. The blue curve, which is the current cycle, is clearly anomalous among the previous few sunspot cycles.