The sun is showing more activity than it has over the past few years. Still, the sun is as quiet as it has been in 100 years of record keeping. The sun's activity is largely defined by the number of sunspots on the sun itself. Last year approximately 71% of days were free of sunspots. Since 2004 we've seen 776 spotless days. This compares to 485 spotless days in a typical solar minimum. Scientists had expected more sunspot activity over the past several years. Some of these same scientists now believe we could be entering a deeper solar minimum by 2015. Previous climate studies suggest that a deep solar minimum is correlated with somewhat colder temperatures across the globe. Although we should see a more active sun over the next few years, there is a concern we could see a spotless sun by the middle of the current decade. Some scientists now believe we could see global cooling if this process takes place.
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