'About 0.10C of warming, or more, has been added to temps in last decade, compared to data up to about 1950. These are only changes made by GISS since 2008. Prior to 2008, other adjustments of about 0.03C had already been added to the numbers originally declared just a few years earlier. These adjustments must, therefore, also be added on to the adjustments made since...against the baseline of 1951-80, is 0.44C. These adjustments make up about a quarter of this figure'