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== Sun Spots ==
== Sun Spots ==
Sunspot activity may be a primary factor in climate fluctuations, according to Willie Soon, a researcher affiliated with the Harvard-Smithsonian Center for Astrophysics and the Harvard College Observatory. '''“The sun is a great driving force to climate change,”''' Soon said that there have been much greater temperature fluctuations due to sunspots in the past and that proponents of global warming need to consider the effects of sunspot activity on global temperatures. Brian Farrell, a Harvard meteorology professor, acknowledged a connection between sunspot activity and temperatures on the Earth, “A strong correlation between the amount of radioactive carbon and temperature from ice cores has shown that solar activity can affect temperature,” but "a hypothesis...[that] does not have firm scientific grounding." <ref>[http://www.tgdaily.com/content/view/42006/181/ Harvard astrophysicist: Sunspot activity correlates to global climate change] TGDaily.com, April 10, 2009</ref>
Sunspot activity may be a primary factor in climate fluctuations, according to Willie Soon, a researcher affiliated with the Harvard-Smithsonian Center for Astrophysics and the Harvard College Observatory. '''“The sun is a great driving force to climate change.”''' Soon said that there have been much greater temperature fluctuations due to sunspots in the past and that proponents of global warming need to consider the effects of sunspot activity on global temperatures. Brian Farrell, a Harvard meteorology professor, acknowledged a connection between sunspot activity and temperatures on the Earth, “A strong correlation between the amount of radioactive carbon and temperature from ice cores has shown that solar activity can affect temperature,” but "a hypothesis...[that] does not have firm scientific grounding." <ref>[http://www.tgdaily.com/content/view/42006/181/ Harvard astrophysicist: Sunspot activity correlates to global climate change] TGDaily.com, April 10, 2009</ref>
==Claims of "Consensus"==
==Claims of "Consensus"==