Failed Math: In 1997, NOAA claimed that the Earth was 3.83 degrees warmer than today

Watts Up With That?

Steve McIntyre always told us to “watch the pea under the thimble” when it comes to climate change pronouncements, this is one of those cases. Yesterday, to much media fanfare, wailing, and gnashing of teeth NOAA pronounced that 2015 was the hottest year on record, ever! There’s only one problem with that…the Internet never forgets. Back in 1997 after the super El Nino made global temperatures soar, NOAA/NCDC produced this report:

1997-GAT-NOAA-NCDC

Source: https://www.ncdc.noaa.gov/sotc/global/199713 (h/t to Tom Nelson)

Archived here: http://web.archive.org/web/20150504164341/http://www.ncdc.noaa.gov/sotc/global/199713

In that 1997 report, they say clearly that the Global Average Temperature (GAT) was 62.45°F, based on a 30-year average (1961-1990) of the combined land and sea surface temperatures. Since we know the 1997 El Nino caused a record high spike in temperature, that means that for that 30 year period, there was no warmer GAT than 62.45°F up until that time.

Yet in 2015, the claim for the “warmest ever” GAT…

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