Very good summary, thanks. I hope underlying AGW is "modest" as you suggest. Otherwise, if global temperatures do remain static or fall slightly over the next 10 to 20 years, more and more will reject AGW, CO2 emission will rise significantly and then the next generation will be in a real mess. Scientists and governments need to send a clear message out now about the -PDO etc and the affects on global temperatures now. They need to forecast the lower increases in global temperatures. I think some scientists are having a competition about who can make the most dramatic statement about AGW and this will backfire.