Jeff Id of The Air Vent emailed me today inviting me to repost Ryan O's latest work on statistical evaluation of the Steig et al "Antarctica is warming" paper ( Nature, Jan 22, 2009) I thought long and hard about the title, especially after reviewing the previous work from Ryan O we posted on WUWT where the paper was dealt a serious blow to "robustness". After reading this latest statistical analysis, I think it is fair to conclude that the paper's premise has been falsified.
Ryan O, in his conclusion, is a bit more gracious:
I am perfectly comfortable saying that Steig's reconstruction is not a faithful representation of Antarctic temperatures over the past 50 years and that ours is closer to the mark.Not only that, Ryan O did a more complete job of the reconstruction than Steig et al did, he mentions this in comments at The Air Vent:
Steig only used 42 stations to perform his reconstruction. I used 98, since I included AWS stations.The AWS stations have their problems, such as periods of warmer temperatures due to being buried in snow, but even when using this data, Ryan O's analysis still comes out with less warming than the original Steig et al paper.
Antarctica as a whole is not warming, the Antarctic peninsula is, which is significantly removed climatically from the main continent.