"There is much interest in the latest temperature anomaly adjustments by NOAA/NCEI (formerly known as NOAA/NCDC).
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This author has been downloading NOAA monthly temperature anomaly data since 2010.
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The May 2015 adjustment is not the only one.
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There appear to have been 8 adjustments between November 2010 and May 2015.
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Assuming that these changes are legitimate adjustments, one has to wonder, if they got it wrong the last 7 tries, what confidence can we have that they got it right THIS TIME, or will they change it again if Earth doesn’t cooperate? "
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The chart below shows average temperature from 1880 to 2015 -- not the measured average temperature of Earth -- the chart ONLY shows cumulative "adjustments" to the raw data measurements -- "adjustments" that create "global warming" out of thin air.
These are ONLY the "adjustments" that the author of the article at the link below discovered in the period from October 2010 to May 2015:
-- There were other "adjustments" before October 2010, and,
-- There will be more "adjustments" after May 2015.
-- There were other "adjustments" before October 2010, and,
-- There will be more "adjustments" after May 2015.
This is not science -- it is politics.
Source of quote and chart: