By Andy May The Old Farmer’s Almanac has been making yearly long-term weather forecasts for 230 years. We pay attention to them because they are normally 80% accurate. They did…
Author: Andy May
The Greenhouse Effect, A Summary of Wijngaarden and Happer
By Andy May This post was updated 9/24/2021 to reflect reader comments. The phrase “greenhouse effect,” often abbreviated as “GHE,” is very ambiguous. It applies to Earth’s surface temperature, and…
European Energy Prices set Records
By Andy May According to the Wall Street Journal yesterday, due to a rare lack of North Sea wind, already high European energy prices are climbing higher. “Gas and coal-fired…
False and misleading “fact check” about Connolly, et al., 2021
By Andy May Dr. Ronan Connolly and his co-authors respond to obvious false claims, in a supposed “fact check” about their latest paper on how solar variability may be affecting…
Nature promotes frivolous lawsuits
By Andy May A Dutch joke*: “The Judge asks an attorney pleading his case: ‘Am I ever to hear the truth?’ The attorney responds: ‘No, my Lord, only the evidence.’”…
AR6 and The Paleocene-Eocene Thermal Maximum
By Andy May The PETM or Paleocene-Eocene Thermal Maximum was a warm period that began between 56.3 and 55.9 Ma (million years ago). The IPCC AR6 report (actually a draft,…
Can we predict long-term solar variability?
This post is a result of an online conversation with Dr. Leif Svalgaard, a research physicist at Stanford University. Leif knows a great deal about the Sun and solar variability…
Sea Level Model Fail
From a post by Arnout Jaspers at clintel.org. In 2016, a headline grabbing study said that the Antarctic ice sheet is much more unstable than [previously] estimated. As a consequence,…
Climate Sensitivity to CO2, what do we know? Part 2.
By Andy May In Part 1, we introduced the concepts of climate sensitivity to CO2, often called ECS or TCR. The IPCC prefers a TCR of about 1.8°C/2xCO2 (IPCC, 2013,…
Climate Sensitivity to CO2, what do we know? Part 1.
The first version of this post had an error in Figure 1. It has been fixed along with the associated text (7/5/2021). By Andy May The IPCC claims, in their…
Science, Philosophy and Politics
By Andy May Greg Weiner has written a great essay in Law & Liberty, entitled: “Why We cannot Just ‘Follow the Science.‘” His point is that scientists and science are…
How to compare today to the past
By Andy May In the last post, I discussed the problems comparing modern instrumental global or hemispheric average temperatures to the past. Ocean temperature coverage was sparse and of poor…
Global Warming is happening, what does it mean?
By Andy May The concepts and data used to make temperature and climate reconstructions, or estimates, are constantly evolving. Currently, there are over 100,000 global weather stations on land and…
Scientific American steps in it
By Andy May The left-wing Scientific American published a so-called review of Steven Koonin’s new book, Unsettled, by a number of prominent left-wing scientists. The article is headed by the…
Linkedin bans a post
By Andy May In 2017 I wrote a post analyzing the data and literature surrounding the human impact on Earth’s environment. The analysis uses the U.N. IPCC’s definition of environmental…
The Union of Concerned Scientists tries to “cancel” Steve Koonin
By Andy May I’ve written about the far left-wing Union of Concerned Scientists (UCS) and their anti-democratic attempts to suppress free-speech and free-thought before (see here). There are more details…
Fact checking Steven Koonin’s Fact Checkers
By Andy May The Wall Street Journal (WSJ) published a review of Steven Koonin’s new book Unsettled on April 25, a little over a week before it went on sale.…
A Review of Temperature Reconstructions
By Andy May This is an update to a 2016 post; the original post is here. We often hear that the planet is warming faster than ever before, or at…
Clouds and Global Warming
By Andy May This post is inspired by an old post on the CERES cloud data by Willis Eschenbach that I’ve read and re-read a lot, “Estimating Cloud Feedback Using…
Unsettled, Steven Koonin’s new book
By Andy May I was honored to be chosen by NYU Professor Steven E. Koonin to review his wonderful new book, Unsettled: What Climate Science Tells Us, What it Doesn’t,…
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