For 223 months, since January 1997, there has been no global warming at all (Fig. 1). This month’s RSS temperature shows the Pause setting a new record at 18 years 7 months.
It is becoming ever more likely that the temperature increase that usually accompanies an El Niño will begin to shorten the Pause somewhat, just in time for the Paris climate summit, though a subsequent La Niña would be likely to bring about a resumption and perhaps even a lengthening of the Pause.
Figure 1. The least-squares linear-regression trend on the RSS satellite monthly global mean surface temperature anomaly dataset shows no global warming for 18 years 7 months since January 1997.
The hiatus period of 18 years 7 months is the farthest back one can go in the RSS satellite temperature record and still show a sub-zero trend. The start date is not cherry-picked: it is calculated. And the graph does not mean there is no such thing as global warming. Going back further shows a small warming rate.
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