From “not a lot of people know that” about NASA’s world temperature anomaly estimate.
By Paul Homewood
From Climate Change Dispatch:
Has anyone looked at the recent National Aeronautics and Space Administration Goddard Institute for Space Studies (NASA GISS) Surface Temperature Analysis? A chart of it was used in a recent Australian Broadcasting Company debate on global warming to make the case that surface temperatures have risen continuously during the past 20 years.
There’s a pretty blatant problem with the NASA chart, however. And it’s a fault that anyone with even a cursory knowledge of climate studies would recognize.
The NASA GISS analysis essentially eliminates the 1998 El Niño. Instead of the ’98 El Niño towering above neighboring years, thanks to its massive release of stored Pacific Ocean heat content, 1998 is simply depicted as one rung on an ever-climbing temperature ladder. And then, suddenly, there’s 2016, with an El Niño that explodes far above all of the preceding years.
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