Monday, July 13, 2009
Cooling at Carnarvon
Carnarvon, Australia shows an interesting pattern in the degree-days. Just to refresh everyone's memory a degree-day is the average monthly temperature times the number of days in that month. This measure allows one to see warming if it takes the form of more days at the same temperature or a higher temperature for the same number of days.
So, what do we see at Carnarvon, Airport? Well, from 1949 until 1988, the temperature warmed. In 1949 there were 8098 degree-days. But in 1988 it was 8500 degree-days, clearly a warming trend. But, past 1988 Carnarvon cooled. By 2008, the degree-days were down to 8037, less than in 1949. Where in the hell is the global warming? We have almost 80 ppm more CO2 in the atmosphere in 2008 than we had in 1949, but the number of degree-days is less. Does this make any sense?