To: Salt'n'Peppa who wrote (156457 ) 9/7/2011 12:52:12 AM From: Archie Meeties 2 Recommendations Read Replies (1) | Respond to of 206085 SnP, Mauna Loa is the perfect site for CO2 measurement. CO2 from the nearest active volcano never reaches it and the influence of man made sources of CO2 is nonexistant. Next! "Why start the graph at 1880? " It was about that time that; accurate temperatures were measured on a gobal scale. There is data from Europe going back earlier, but the rest of the globe was scanty. Older measurements are derived measures from other data. Regarding the polar ice caps: "Regardless, once again the graph shows just 30 years of data. I want to see a graph over 1000 years to give the subject any real value. " You're not going to get that, as highly accurate data is only possible with satellites. "Place the same error shading on the lower curves and it is totally statistically sound to say that the curves do actually overlay one another in near-perfect correlation." Yes for May, June, the rest seem solid. 2 SD is a pretty high bar. Let's say they overlap 50% and 50% they is no chance that the difference is by chance alone. Then what? Wait another 10 years until we find out if it's 100% for all months? "It is an order of magnitude smaller using the same data!!!!!!!!! " Although the slope of the line in the same direction, correct? Ice sheets going down everywhere you look. I agree that cherry picking a recent time frame is fraught with problems. I think it more accurate to look at it like this, Either the rate of change recently has dramatically increased or There are wide ranges in the rate of change over the same time period, and the recent data is just one such an example. One hypothesis that isn't supported is; the rate of change when measuring one 8 year period is higher than when you look at a 20 year period, therefore agw warming is bunk!