IEA: Global Coal Power Generation to Reach a New High in 2022

By Andy May It’s official, the IEA believes that coal-powered electricity generation will rise 9% in 2021 to an all-time high, once the final numbers are in. For the details…

Viral, A Review

By Andy May Alina Chan is a molecular biologist specializing in gene therapy and cell engineering at the Broad Institute of MIT and Harvard. She partnered with the famous science…

Total Energy Used and petrochemicals

By Andy May It came up in conversation: How much oil and gas goes into plastics and fertilizer production? It turns out the IEA has a 2018 report on this…

Autocorrelation in CO2 and Temperature Time Series

By Andy May In my last post I plotted the NASA CO2 and the HadCRUT5 records from 1850 to 2020 and compared them. This was in response to a plot…

CO2 and Temperature

By Andy May I had a very interesting online discussion about CO2 and temperature with Tinus Pulles, a retired Dutch environmental scientist. To read the whole discussion, go to the…

The Old Farmer’s Almanac Seasonal Forecasts

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…

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…