Skeptic Arguments and What the Science Says Claims about adaptation Claims about IPCC Claims about the sun Claims about other planets Claims about greenhouse gas Claims about climategate Claims about consensus Claims about temperature data Claims about predictions Claims about oceans Claims about Greenland Claims about cooling Claims about historical precedent Miscellaneous claims Claims about sea level rise Claims about other effects Learn more about debate mapping Claims about CO2 missing citation Polar regions no reference given no citation Volcano related Human related

Map Node  Claims about the sun url anchor

Question Node  What are the arguments about the sun? url anchor

Answer Node  Solar Cycle Length proves its the sun url anchor

Tags:  solar cycle, Sun

Pro Node   an article claiming "strikingly good agreement" between solar cycle lengths (the fluctuating lengths of cycles undergone by sunspot numbers) and northern hemisphere land temperatures over the period 1860–1990 url anchor

n 1991, Eigil Friis-Christensen and Knud Lassen published an article claiming "strikingly good agreement" between solar cycle lengths (the fluctuating lengths of cycles undergone by sunspot numbers) and northern hemisphere land temperatures over the period 1860–1990 url anchor
Tags:  Eigil Friis-Christensen, Knud Lassen
Reference Node  http://www.friendsofscience.org/assets/files/documents/Solar%20Cycle%20-%20Friis-Chr_Lassen-.pdf url anchor
Reference: http://www.friendsofscience.org/assets/files/documents/Solar%20Cycle%20-%20Friis-Chr_Lassen-.pdf

Con Node  The sun has not warmed since 1970 and so cannot be driving global warming. url anchor

Reference Node  http://www.skepticalscience.com/solar-cycle-length.htm url anchor
Reference: http://www.skepticalscience.com/solar-cycle-length.htm

Answer Node  Solar cycles cause global warming url anchor

Pro Node  A new peer-reviewed study on Surface Warming and the Solar Cycle found that times of high solar activity are on average 0.2°C warmer than times of low solar activity, and that there is a polar amplification of the warming.  url anchor

A new peer-reviewed study on Surface Warming and the Solar Cycle found that times of high solar activity are on average 0.2°C warmer than times of low solar activity, and that there is a polar amplification of the warming. This result is the first to document a statistically significant globally coherent temperature response to the solar cycle, the authors note url anchor
Reference Node  http://epw.senate.gov/public/index.cfm?FuseAction=Minority.Blogs&ContentRecord_id=84e9e44a-802a-23ad-493a-b35d0842fed8&Issue_id= url anchor
Reference: http://epw.senate.gov/public/index.cfm?FuseAction=Minority.Blogs&ContentRecord_id=84e9e44a-802a-23ad-493a-b35d0842fed8&Issue_id=
Reference Node  http://www.ecd.bnl.gov/steve/pubs/HeatCapacity.pdf url anchor
Reference: http://www.ecd.bnl.gov/steve/pubs/HeatCapacity.pdf

Con Node  Over recent decades, the sun has been slightly cooling & is irrelevant to recent global warming url anchor

Reference Node  http://www.skepticalscience.com/solar-cycles-global-warming.htm url anchor
Reference: http://www.skepticalscience.com/solar-cycles-global-warming.htm

Answer Node  The sun is getting hotter url anchor

Tags:  Sun

Pro Node  The alteration of the Nimbus7/ERB data is responsible for the different shape between the ACRIM and PMOD TSI composites url anchor

There is no single continuous satellite measurement of Total Solar Irradiance (TSI). Instead, the data is composited from various satellite measurements. The two most cited composites are PMOD and ACRIM. According to Nicola Scafetta, ACRIM more faithfully reproduces the observations whereas PMOD assumes the published TSI satellite data are wrong and need additional corrections. In particular, PMOD alters the data from the Nimbus7/ERB record from 1989 to 1991. Nimbus7/ERB data during such a short period show a clear upward trend while PMOD during the same period is almost constant. The alteration of the Nimbus7/ERB data is responsible for the different shape between the ACRIM and PMOD TSI composites url anchor
Reference Node  http://icecap.us/images/uploads/Lockwood_and_Frolich_Review.pdf url anchor
Reference: http://icecap.us/images/uploads/Lockwood_and_Frolich_Review.pdf

Con Node  The sun has just had the deepest solar minimum in 100 years. url anchor

Tags:  solar minimum, Sun
Reference Node  http://www.skepticalscience.com/acrim-pmod-sun-getting-hotter.htm url anchor
Reference: http://www.skepticalscience.com/acrim-pmod-sun-getting-hotter.htm

Answer Node  It's the sun url anchor

Tags:  Sun

Pro Node  Over the past few hundred years, there has been a steady increase in the numbers of sunspots, at the time when the Earth has been getting warmer.  url anchor

The data suggests solar activity is influencing the global climate causing the world to get warmer. url anchor
Reference Node  http://news.bbc.co.uk/2/hi/science/nature/3869753.stm url anchor
Reference: http://news.bbc.co.uk/2/hi/science/nature/3869753.stm

Con Node  The sun’s output has barely changed since 1970 and is irrelevant to recent global warming. url anchor

Reference Node  http://www.skepticalscience.com/solar-activity-sunspots-global-warming.htm url anchor
Reference: http://www.skepticalscience.com/solar-activity-sunspots-global-warming.htm
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