The U.S. National Temperature Index, is it based on data? Or corrections?

By Andy May The United States has a very dense population of weather stations, data from them is collected and processed by NOAA/NCEI to compute the National Temperature Index. The index is an average temperature for the nation and used to show if the U.S. is warming. The data is stored by NOAA/NCEI in their…

The Paper that Blew it Up

By Andy May “If you can’t dazzle them with brilliance, baffle them with Bull…” W. C. Fields and, flying a bomber over Berlin. In late February 2015, Willie Soon was accused in a front-page New York Times article by Kert Davies (Gillis & Schwartz, 2015) of failing to disclose conflicts of interest in his academic…

Modern Climate Change Science

The first modern theoretical estimates of ECS, the equilibrium climate sensitivity to carbon dioxide, were reported in 1979 in the so-called “Charney Report” (Charney, et al., 1979). They reported, on page 2, a theoretical ECS of 1.5°C to 4.5°C per doubling of the CO2 atmospheric concentration. This estimate included an estimate of water vapor feedbacks,…

Facts and Theories, Updated

By Andy May In 2016, I published a post entitled “Facts and Theories.” It has been one of my most popular posts and often reblogged. I updated the post extensively for my new book, Politics and Climate Change: A History. This post is a condensed version of what is in the book. Sometimes people ask…

SAR, the Turning Point

SAR is an abbreviation for the second IPCC assessment report, Climate Change 1995 (IPCC, 1996). As explained in my new book, Politics and Climate Change: A History, this IPCC report was a turning point in the debate over catastrophic human-caused climate change. The first IPCC report, “FAR,” was written under the chairmanship of Bert Bolin. At the time FAR was completed and published, circa 1990, Margaret Thatcher, the “Iron Lady,” was Prime Minister of the U.K. and a fervent climate change alarmist. Bert Bolin thought she was “seriously misinformed.” The conclusion of FAR was:

Comparing USCRN and nClimDiv to USCHN

By Andy May Steven Mosher complained about my previous post on the difference between the final and raw temperatures in the conterminous 48 states (CONUS) as measured by NOAA’s USCHN. That post can be found here. Mosher’s comment is here. Mosher said the USHCN is no longer the official record of the CONUS temperatures. This…

Global Cooling will kill us all!

By Andy May As Angus McFarlane shows in a 2018 well researched wattsupwiththat.com web post (McFarlane, 2018), some 65% of the peer-reviewed climate papers, that offered an opinion, published between 1965 and 1979 predicted that the global cooling seen at the time would continue. He references and is supported by a Notrickszone.com post by Kenneth…

Recent USHCN Final v Raw Temperature differences

By Andy May While studying the NOAA USHCN (United States Historical Climate Network) data I noticed the recent differences between the raw and final average annual temperatures were anomalous. The plots in this post are computed from the USHCN monthly averages. The most recent version of the data can be downloaded here. The data shown…