Global Temperature Dives (Again) in May
by Anthony Watts, Watts Up With That?, June 4, 2008 [here]
Confirming what many of us have already noted from the anecdotal evidence coming in of a much cooler than normal May, such as late spring snows as far south as Arizona, extended skiing in Colorado, and delays in snow cover melting in many parts of the northern hemisphere, the University of Alabama, Huntsville (UAH) published their satellite derived Advanced Microwave Sounder Unit data set of the Lower Troposphere for May 2008.
It is significantly colder globally, colder even than the significant drop to -0.046°C seen in January 2008.
The global temperature change from April to May 2008 was -.195°C
UAH
2008 Jan -0.046
2008 Feb 0.020
2008 Mar 0.094
2008 Apr 0.015
2008 May -0.180
Compared to the May 2007 value of 0.199°C we find a 12 month delta-T (global temperature change) is -.379°C.
But even more impressive is the change since the last big peak in global temperature in January 2007 at 0.594°C, giving a 16 month delta-T of -0.774°C which is equal in magnitude to the generally agreed upon “global warming signal” of the last 100 years. … [more]
