No sunspots seen in an entire month -- the first time that's happened since 1913. Fewer sunspots = lower solar activity = lower earth temperatures.Unknown commenter at Ace of Spades:
Last year alone, as sunspot activity continued to dwindle, we lost something like .7 Celsius in global mean temperature -- nearly wiping out all the scary-huge warming we've had over the past century (about 1 degree C).
If only there were some ... natural mechanism for explaining the warming and cooling phases of the earth.
This hypothetical mechanism would have to be a massive source of energy, however. Approximately on the scale of our own Sun.