Proponents of the anthropogenic global warming theory rely on global temperature data over a period of centuries that purport to be accurate to within a tiny fraction of one degree. Common sense warns us to be skeptical of such spurious certainty. But the truth is much worse: climate alarmists have systematically fudged the historical record by changing past temperature data to make it look as though the earth is warming, consistent with their theory.
We have written about this before; the latest comes from
Watts Up With That, the world’s most widely read web site on climate science:
I ran a post yesterday, showing how the latest version of GISSTEMP had changed from using Hadley/Reynolds to ERSST for ocean temperatures, with the result that about 0.03C had been added to recent warming.
However, this is not the only change they have made to the historical temperature record in recent years. Climate4You, fortunately, archived the GISS data in May 2008. Comparing this dataset with today’s version, we can see that about 0.10C of warming, or more, has been added to temperatures in the last decade, compared to data up to about 1950.
GISS is NASA’s Goddard Institute for Space Studies, which was commandeered some years ago by global warming hysteric James Hansen. Its data are widely relied on to support claims of unprecedented warming. But GISS has been playing games with the historical record, changing previously reported temperatures going all the way back to the 19th century.