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Is AR6 the worst and most biased IPCC Report? - Highlighted Article

Posted On:
Jun 1, 2023 at 7:00 AM
Climate Change


From: Watts Up With That

By: Andy May

Date: May 16, 2023

Is AR6 the worst and most biased IPCC Report?

This is the text of my presentation on Tom Nelson’s podcast which can be viewed here. The question and answers start at about 18:15 into the interview.

The first IPCC Physical Science Basis report is called “FAR” and was first published in 1990. An updated 1992 version of the report contains this statement:

“global-mean surface air temperature has increased by 0.3°C to 0.6°C over the last 100 years … The size of this warming is broadly consistent with predictions of climate models, but it is also of the same magnitude as natural climate variability. … The unequivocal detection of the enhanced greenhouse effect from observations is not likely for a decade or more.”

(IPCC, 1992, p. 6).

This was an accurate statement at the time, and it is mostly accurate to this day. In the past century (since 1920) temperatures have increased about one degree and I’m not sure we will be able to detect a human enhanced greenhouse effect in ten years, or ever, but otherwise the quote is still accurate. One degree of global warming in a century is well within natural climate variability according to historical records and records of glacier advances and retreats (Vinós, 2022, pp. 89-107).

Glaciers exist today, where no glaciers existed during the Medieval Warm Period from about 800 to 1200AD and during the Holocene Climatic Optimum from about 7500 to 4500BC. In addition, the Vikings farmed parts of Greenland where permafrost exists today. Ötzi, the Tyrolean iceman, who was frozen into a glacier about 5,000 years ago, and only recently discovered in his glacier tomb, can attest to the fact that modern glaciers are more advanced than they were before 3000BC.

The second report, called SAR was published in 1996 and 1997. Chapter 8 was a major issue when it came out because in the original draft, the scientists who wrote it all agreed to include this statement:

“no study to date has both detected a significant climate change and positively attributed all or part of that change to anthropogenic causes.”

(Final draft, approved by all 36 authors, SAR, July 1995)

Yet, in the final meeting of the IPCC supervising committee of government politicians, the editors and lead authors of the IPCC on November 29th, 1995, which went very late and into the early morning of November 30th, this statement was changed to read:

“The balance of evidence suggests a discernible human influence on global climate.”

(IPCC, 1996, p. 4). (continue reading)


Is AR6 the worst and most biased IPCC Report?