Quote:
Originally Posted by Nate the great
I just can't let this go. I fed the US Mean Temperature into a spreadsheet, and then plotted it.
The data only goes back to 1880, but the graph does suggest that the mean temperature peaked around 1954 and then crashed. It looks like we are approaching another peak.
But, I do see 2 cycles in this graph. The peak and valley of the 50's and 60's would tend to refute the claim that temperature trends were rising consistently throughout the 20th century.
P.S. The spreadsheet is attached. The data is in reverse chronological order.
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A hint of that momentary peak in the data from one continent can also be seen in the global data, although it is much smaller there. The data that is displayed in the graphs at the link that Harry posted covers a longer period of time (and there is data from less direct measurements that go back very much further) and is of the
global mean temperature. And the general trend upwards (with momentary variations) is clearly visible.