A feature of the 165 - year long global temperature series in recent years is that new records highs have not been rare at all. (gergs.net)
Several time series investigations of global climate change have been published, but the time series properties of the variables has received little attention with a few exceptions in the case of global temperature series. (ideas.repec.org)
2011 was the 9th warmest year in the GISTEMP global temperature series. (skepticalscience.com)