Monthly Archives: December 2021

Some final thoughts about 2021. During the past year these letters have been mainly devoted to explanation of the greenhouse energy effect of precipitable water (PW), with particular emphasis on the PW that is formed when water vapor and its … Continue reading →

An investigation into the cause of global warming trends.  Earth is divided into five separate and distinct climate zones, each of which, with the exception of the Antarctic, has its own recorded temperature history all the way back to 1880.  … Continue reading →

Today’s Weather Maps seldom produces an error in its displays, but today it did, and this is one that we can use to our advantage as a study of relationships. One of the maps of Jetstream Wind Speeds failed to … Continue reading →

In his November Temperature Update, reviewed in yesterday’s letter, James Hansen predicted that the global average will reach +2C by the middle of this century.  He gives us a number of reasons which are pretty straightforward and hard to disagree … Continue reading →

James Hansen has issued his November temperature update. These usually have something interesting to say besides ordinary data, and this one goes to an extreme in that regard. Hansen has always been controversial in one way or another. He has … Continue reading →

I want to record and save the current image of high altitude air pressure configuration from this ideal vantage point, partly for archive purposes and partly for the sake of demonstrating the effects of its highly distorted shape on jetstream … Continue reading →

Today we’ll do another demonstration of the greenhouse effect of precipitable water (PW), much like yesterday’s, but with more of a European perspective and with additional commentary on causation. We’ll start with the temperature map. Focus on an especially brutal … Continue reading →

A fine example of the greenhouse energy effect of precipitable water (PW) is going on today in southern Russia. We’ll be comparing two locations that have similar land features, both on the same latitude as northern England. One of them … Continue reading →

Scientific studies of atmospheric rivers (ARs) have grown considerably in the past decade, mostly under the radar. We seldom see any kind of news release about a new study. The authors generally do not include any of the bigger names … Continue reading →

Regional Antarctica has been reporting warm anomalies practically every day for the last several weeks, breaking an opposite trend of long standing. Today is a good example at +2.7C, which should be worthy of a close look. On this map, … Continue reading →