Clearly the time-scales here are different that the century-scale of the current aberration.
Indeed, among many other factors affecting our exceptionally warm geophysical period with current climatic temperatures predominantly driven by Solar heating/cooling arising from variation of solar activity modulating cosmic ray interactions with cloud cover:
http://spacecenter.dk/xpdf/influence-of-cosmic-rays-on-the-earth.pdf
inducing the dominant portion of global climate changes we currently experience:
Sun's Output Increasing in Possible Trend Fueling Global Warming
Sunspot Activity at 8,000-Year High
Sun's Activity Increased in Past Century, Study Confirms
New Scientist - Hyperactive sun comes out in spots
An interesting test will be on whether or not ocean and tropospheric temperatures drop as this 8000 year high in solar activity reverses as it is predicted for coming decades.
And may already be showing up in falling ocean temperatures since ~2003
with of course, additional variations in temperature due to changes in solar brightness coincident with solar activity:
http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2004/07/18/wsun18.xml&sSheet=/news/2004/07/18/ixnewstop.html
supported in the warming trendsobserved throughout the solar system:
Mars warming:
http://news.bbc.co.uk/2/hi/science/nature/4266474.stmJupiter warming:
http://www.usatoday.com/tech/science/space/2006-05-04-jupiter-jr-spot_x.htm?POE=TECISVAPluto warming:
http://www.space.com/scienceastronomy/pluto_warming_021009.htmlNeptune's Triton warming:
http://www.scienceagogo.com/news/19980526052143data_trunc_sys.shtmlSaturn's Enceladus warming:
http://www.sciencenewsforkids.org/articles/20060419/Feature1.aspSaturn warming:
http://dsc.discovery.com/news/briefs/20050131/saturn.html
as well as variations in climate effects due to changess in Earth's orbital alignment with the mean solar system plane and the geophysical events affecting planetary albedo that arise from that factor:
Ice Ages & Astronomical Causes Origin of the 100 kyr Glacial Cycle
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Spectrum of 100-kyr glacial cycle: Orbital inclination, not eccentricity
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http://www.newscientistspace.com/article/dn9228-mysterious-glowing-clouds-targeted-by-nasa.html
Mysterious glowing clouds targeted by NASA
26 May, 2006
High-altitude noctilucent clouds have been mysteriously spreading around the world in recent years (Image: NASA/JSC/ES and IA)
http://newton.ex.ac.uk/aip/physnews.252.html#1
INTERPLANETARY DUST PARTICLES (IDPs) are deposited on the Earth at the rate of about 10,000 tons per year. Does this have any effect on climate? Scientists at Caltech have found that ancient samples of helium-3 (coming mostly from IDPs) in oceanic sediments exhibit a 100,000-year periodicity. The researchers assert that their data, taken along the Mid-Atlantic Ridge, support a recently enunciated idea that Earth's orbital inclination varies with a 100-kyr period; this notion in turn had been broached as an explanation for a similar periodicity in the succession of ice ages. (K.A. Farley and D.B. Patterson, Nature, 7 December 1995.)
Farley & Patterson 1998, http://www.elsevier.com/gej-ng/10/20/36/33/37/32/abstract.html
Farley http://www.gps.caltech.edu/~farley/
Farley http://www.elsevier.nl/gej-ng/10/18/23/54/21/49/abstract.html
http://www.publicaffairs.noaa.gov/pr96/dec96/noaa96-78.html
ABRUPT CLIMATE CHANGE DURING LAST GLACIAL PERIOD COULD BE TIED TO DUST-INDUCED REGIONAL WARMING
Preliminary new evidence suggests that periodic increases in atmospheric dust concentrations during the glacial periods of the last 100,000 years may have resulted in significant regional warming, and that this warming may have triggered the abrupt climatic changes observed in paleoclimate records, according to a scientist at the Commerce Department's National Oceanic and Atmospheric Administration. Current scientific thinking is that the dust concentrations contributed to global cooling.
http://www.freerepublic.com/focus/f-news/1727767/posts?page=50#50
with what I think is good information addressing the linkage (or lack thereof) to solar variability. While I will grant the investigation of cosmic ray influence on clouds and Earth's climate has merit, as noted in the recent post on RealClimate (including the response from one of the involved researchers, #7), considerably more work needs to be done.
Quote from response #7. "Finally an opinion of my own: Press release or not, I am in no way out to attribute what has gone on in the last century solely to cosmic rays or anything else and I am certainly not out to belittle the effect of CO2 and other greenhouse gases." (Note that there have been a lot of additional responses since last I checked this article)