|5 years ago :: Oct 07, 2010 - 10:23AM #1|
It looks like solar cycles are not in phase with solar irradiation influences on climate. New research now reveals that while solar activity reached a minimum in 2009, the preceding strong decline in UV irradiation was accompanied by an increase in visible and infrared irradiation levels. In sum, the net effect on the earth's surface temperature could be estimated to amount to an increase of about a twentieth of a degree Celsius.
This finding, although based on a short record from a potentially anomalous solar cycle, suggests that a major revision to our current understanding of solar forcing of climate may be in order.
Now I am curious to hear the solar hacks of the past years add their mustard to this...