The global temperature anomalies for April from GISS (Goddard Institute for Space Studies) are out. Here's a graph of 12-month mean anomalies plus an 11-year rolling mean. Shows a nasty-looking spike at the end and the so-called hiatus is barely noticeable, particularly in the smoothed curve.
As can be seen, the mean anomaly ending on this April has almost reached +1C. The Met Office use an addition of 0.2C to convert to an anomaly over the pre-industrial era. As I see it, this equates to a correction of 0.3C for GISS due to the different normal periods used. Thus the past 12 months were 1.3C warmer than the pre-industrial period. Not too far from the IPCC's "wouldn't it be nice if" target of 1.5C. Worrying.
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