A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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Nir Shaviv: On IPCCs exaggerated climate sensitivity and the emperor’s new clothes

Nir Shaviv, the well known astrophysicist from Israel, points out that climate sensitivity (according to the IPCC and co) has barely changed in 33 years. Therefore their predictions from the FAR (IPCC, First Assessment Report) in 1990 ought to mean something. Yet observations are now tracking outside and below even their lowest bounds of estimates. When will the IPCC admit those models need to change?




On IPCCs exaggerated climate sensitivity and the emperor’s new clothes Guest Post by Nir Shaviv (Reposted from ScienceBits , with permission. Thank you Nir). A few days ago I had a very pleasant meeting with Andrew Bolt. He was visiting Israel and we met for an hour in my office. During the discussion, I mentioned that the writers of the recent IPCC reports are not very scientific in their conduct and realized that I should write about it here.

Normal science progresses through the collection of observations (or measurements), the conjecture of hypotheses, the making of predictions, and then through the usage of new observations, the modification of the hypotheses accordingly (either ruling them out, or improving them). In the global warming “science”, this is not the case.

What do [...]