Submitted by Anonymous on Fri, 01/20/2012 - 01:58.
While generally agreeing with most of this post I find the reference to the de Freitas paper misleading. Sure 80% of the variation in temperature in recent decades is related to ENSO, volcanoes etc, but this is the big squiggles on a timeplot of temperature. The slow background rise in average temps is related to the other 20%. I'm not saying it is co2 but it must be something.
![[SOHO Sun Spot Image]](http://sohowww.nascom.nasa.gov/data/realtime/eit_304/1024/latest.jpg)
De Feitas paper
While generally agreeing with most of this post I find the reference to the de Freitas paper misleading. Sure 80% of the variation in temperature in recent decades is related to ENSO, volcanoes etc, but this is the big squiggles on a timeplot of temperature. The slow background rise in average temps is related to the other 20%. I'm not saying it is co2 but it must be something.