O'k I looked at the data on AMO you provide, and it is inconclusive. For example while the max temps do not look extraordinary higher, the orange portion the graph is bigger, so the mean avg in 2010 was larger? BTW one could also argue that the AMO data itself show the impact of GW. This is not a criticism of you; just when you have 2 trends combine it is hard to delineate the impact. No arguing pro or con, it is simply the situation where you have 2 people delivering deadly blow to victim. Which one was the killer? AG, you are very much in similar situation. How could you prove you are not a rapist? How could you rule out the impact of GW on russian heat wave? All the references you submit only show that there was a strong natural phenomenon. Nothing proves their impact would have been identical, not smaller, if there weren't for GW. IMHO it is pretty pointless to look at individual events and try to link them to GW. It would be much more productive to look at frequencies of extreme events and find the correlations.