Even though little change has been seen, there is some interesting news in the August RSS numbers. We are still cooler than one year ago, and the 12 month trend continues to drop.
The RSS (Remote Sensing Systems of Santa Rosa, CA) Microwave Sounder Unit (MSU) lower troposphere global temperature anomaly data for August 2008 was published today and has remained essentially unchanged, with a value of 0.146°C for a miniscule change (∆T) of -0.001°C globally from July 2008.
2008 1 -0.070
2008 2 -0.002
2008 3 0.079
2008 4 0.080
2008 5 -0.083
2008 6 0.035
2008 7 0.147
2008 8 0.146
The August 2008 number is 0.221°C lower than in August of 2007 which was 0.367°C
Click for a larger image
The RSS data is here (RSS Data Version 3.1)
While is was going to do my own analysis of the numbers, Walter Dnes did an excellent job of summarizing it all in comments on another thread, so I’ll give him the honor:
This brings down the 12-month running mean to +0.086, which is very slightly lower than the +0.091 12-month running mean to the end of November 1987. That’s almost 21 years ago.
What I’m really waiting for is Hadley and GISS 12-month means to drop below their 1995 values. Hadley might make it in the next couple of months. GISS by year end. Once we get annual means matching temperatures on the other side of 1998, global cooling will be undeniable.
We do indeed live in interesting times.