NuRayZ said:
what you talkin about willis?
notice the lower portion of the second one. Over the last 50 years, summers are getting hotter, winters are getting warmer.
And yet, if you look earlier than 1850, by using geological data, oxygen testing of compressed ice in the arctic, and the data gathered from coring trees, you see that the earth fluctuates in temperature. Your graph goes until 1850, where there was a convenient a nice cold, wet spell. Extrapolate until the 1200s and you will see that during that time the climate was much warmer then than it is now. (Think agricultural revolution) Just now there are 12th century villages in Norway and Sweden that are being uncovered that looking into their tools were primarily agricultural. THEY EVEN CULTIVATED VINES! Gasp – Only now is Sweden even able to keep a Vine alive long enough to produce a substandard wine.
My point is not that things are getting hotter right now. It’s looking more at long term data that the earth goes through fluctuation naturally. I will not speculate whether or not green house gases are effecting that or not, but my theory is that most of it is natural.