About Andy May

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So far Andy May has created 21 blog entries.

A review of Bill Gates’ New Book “How to avoid a climate disaster”

Bill Gates just published a new book, How to Avoid a Climate Disaster. He begins his book with the assertion that “To stop the warming and avoid the worst effects of climate change—and these effects will be very bad—humans need to stop adding greenhouse gases to the atmosphere.” He continues that every country will [...]

By |2021-02-17T20:55:00+01:0017 February 2021|Book review, News, USA|Comments Off on A review of Bill Gates’ New Book “How to avoid a climate disaster”

A new IPCC report, but the same old problems with the models

The new IPCC report, abbreviated “AR6,” is due to come out between April 2021 (the Physical Science Basis) and June of 2022 (the Synthesis Report). I’ve purchased some very strong hip waders to prepare for the events. For those who don’t already know, sturdy hip waders are required when wading into sewage. I’ve also taken a [...]

By |2021-02-11T22:12:08+01:0011 February 2021|IPCC, News, USA|Comments Off on A new IPCC report, but the same old problems with the models

The problem with climate models

In my last post, on Scafetta’s new millennial temperature reconstruction, I included the following sentence that caused a lot of controversy and discussion in the comments: “The model shown uses a computed anthropogenic input based on the CMIP5 models, but while they use an assumed climate sensitivity to CO2 (ECS) of ~3°C, Scafetta uses 1.5°C/2xCO2 to accommodate [...]

By |2021-02-07T16:49:04+01:007 February 2021|News, USA|Comments Off on The problem with climate models

Scafetta: CMIP5 models unable to replicate Medieval Warm Period, ignore nature

Nicola Scafetta has written a new paper (Scafetta, 2021) in Atmosphere on a new millennial surface temperature reconstruction. This is his latest “what if the models are accurate?” analysis. Scafetta’s idea is, let’s assume a model is correct, what are the implications? Previously, he examined the PMOD solar model, by assuming it was correct and the Sun is invariant [...]

By |2021-02-05T14:57:34+01:004 February 2021|Italy, News, USA|Comments Off on Scafetta: CMIP5 models unable to replicate Medieval Warm Period, ignore nature

A New Look at the Urban Heat Island Effect

Nicola Scafetta has just published a new paper in Climate Dynamics examining evidence of the urban heat island (UHI) effect (Scafetta, 2021). The paper is not paywalled and can be downloaded here. In summary, Scafetta shows that part of the recent warming shown in the HadCRUT 4 global temperature record may be due to the UHI effect. He uses [...]

By |2021-01-23T13:58:48+01:0023 January 2021|News, USA|Comments Off on A New Look at the Urban Heat Island Effect

The Rational Climate e-Book

Patrice Poyet has just published a new 431-page eBook entitled, The Rational Climate e-Book, it is free to download here. Dr. Poyet studied geochemistry, remote sensing, and computer science at Ecole des Mines de Paris / Nice University. He received his doctorate in 1986. As an expert computer modeler, he spends much of the book evaluating climate [...]

By |2021-01-18T18:54:11+01:0018 January 2021|France, News, USA|Comments Off on The Rational Climate e-Book

Rebuttal to Geological Society of London Scientific Statement on Climate Change

Guest essay by David Middleton and Andy May The Geological Society of London recently published a statement on climate change: Geological Society of London Scientific Statement: what the geological record tells us about our present and future climate Geologists Andy May and David Middleton have spent the past few days reviewing the Geological Society [...]

By |2021-01-13T15:42:53+01:0013 January 2021|News, USA|Comments Off on Rebuttal to Geological Society of London Scientific Statement on Climate Change

Michael Mann’s 2008 Reconstruction

In my last post, it was suggested that Michael Mann’s 2008 reconstruction (Mann, et al., 2008) was similar to Moberg’s 2005 (Moberg, Sonechkin, Holmgren, Datsenko, & Karlen, 2005) and Christiansen’s 2011/2012 reconstructions. The claim was made by a commenter who calls himself “nyolci.” He presents a quote, in this comment, from Christiansen’s co-author: Fredrik Charpentier [...]

By |2021-01-11T16:29:39+01:0011 January 2021|News, USA|Comments Off on Michael Mann’s 2008 Reconstruction

Changing Climate Debate History

While researching my next book, I found a bit of interesting deception on the Intelligence Squared web site. This is the organization that hosted the famous March 14, 2007 global warming debate on the motion “Global Warming is not a Crisis.” Debating in favor of the motion were the late Michael Crichton, Professor Richard Lindzen [...]

By |2021-01-06T21:25:34+01:006 January 2021|News, USA|Comments Off on Changing Climate Debate History