On climate change: from what I understand of the subject, there is only one body of research -- three sets of "cross-pollinated" research of which the CRU was one
False. There is data from weather stations, tree rings, ice cores and others.
Again from what I understand, all three of these sets do not have the raw data available.
Again, false. http://www.realclimate.org/index.php/data-sources/ See the "Raw" section for unadjusted results. I highly doubt you are qualified to adjust them, though.
I can also say more confidently that none of these people have theories with operant mechanisms that explain the Medieval Warm Period or the cooling cycles towards the end of the Roman Empire and during the Little Ice Age -- nor do they seem to be in a hurry to discover the operant mechanisms behind these changes to world climate.
From the IPCC: "current evidence does not support globally synchronous periods of anomalous cold or warmth over this time frame, and the conventional terms of 'Little Ice Age' and 'Medieval Warm Period' appear to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries."
Also, recent publications seem to suggest "little to no effect" from the sun: http://www.realclimate.org/index.php/archives/category/clima...
I can also say confidently that you should stop getting your information from random people on the internet.