One of the most fundamental requirements of any physics-based model of climate change is that it must conserve mass and energy. This is partly why I (along with Danny Braswell and John Christy) have been using simple 1-dimensional climate models that have simplified calculations and where conservation is not a problem. Changes in the global […]
SITYS: Climate Models Do Not Conserve Mass or Energy Learn More »
New Record High Temperatures and a Weird Month July 2023 was an unusual month, with sudden warmth and a few record or near-record high temperatures. Image: Creative Commons under Unsplash Since the satellite record began in 1979, July 2023 was: These results suggest something peculiar is going on. It’s too early for the developing El
UAH Global Temperature Update for July, 2023: +0.64 deg. C Learn More »
The Version 6 global average lower tropospheric temperature (LT) anomaly for June 2023 was +0.38 deg. C departure from the 1991-2020 mean. This is statistically unchanged from the May 2023 anomaly of +0.37 deg. C. The linear warming trend since January, 1979 remains at +0.13 C/decade (+0.12 C/decade over the global-averaged oceans, and +0.18 C/decade
UAH Global Temperature Update for June, 2023: +0.38 deg. C Learn More »
It has been a while since I have posted progress on our DOE-funded research into the Urban Heat Island (UHI) effect in the GHCN station temperatures used to monitor land-based global warming. It should be remembered that everything I post on this subject is (as is usually the case) a work in progress. What I
We hear that a new El Nino forming in the Pacific Ocean is likely to push global-average temperatures to new record highs in 2023. Setting aside the fact that we have no idea if current temperatures are warmer than during the Medieval Warm Period of ~1,000 years ago, I have to ask… So what? Doing something
Americans Increasingly Choose a Warmer Life Learn More »
A new paper by Santer et al., provocatively entitled “Exceptional stratospheric contribution to human fingerprints on atmospheric temperature,” goes where no serious climate scientist should go: it has conflated stratospheric cooling with global warming. The paper starts out summarizing the supposed importance of their work, which is worth quoting in its entirety (bold emphasis added):
Climate Fearmongering Reaches Stratospheric Heights Learn More »
For the last decade, I’ve been providing long-range U.S. Corn Belt forecasts to a company that monitors and forecasts global grain production and market forces. My continuing theme has been, “don’t believe gloom and doom forecasts for the future of the U.S. Corn Belt.” The climate models relied upon by the United Nations Intergovernmental Panel
Epic Fail in America’s Heartland: Climate Models Greatly Overestimate Corn Belt Warming Learn More »
Sorry for the late posting of the global temperature update, I’ve been busy responding to reviewers of one of our papers for publication. The Version 6 global average lower tropospheric temperature (LT) anomaly for November 2022 was +0.17 deg. C departure from the 1991-2020 mean. This is down from the October anomaly of +0.32 deg.
UAH Global Temperature Update for November, 2022: +0.17 deg. C Learn More »
Now that I’m back to researching the surface air temperature record and the Urban Heat Island (UHI) effect, I decided to revisit the temperatures in Las Vegas, Nevada. It’s been over 8 years since I posted about Las Vegas being the poster child for the UHI effect and I showed some warming trend calculations from the hourly
The Warming that Happens in Vegas, Stays in Vegas Learn More »
Summary Comparison of rural with urban temperature monitoring sites across Canada during the summers of 1978-2022 shows the expected average nighttime warm bias in urban areas, with a weaker daytime effect. When applied to the Landsat imagery-based diagnoses of increased urbanization over time, 20% of the temperature trends in a small region encompassing Calgary and
Canadian Summer Urban Heat Island Effects: Some Results in Alberta Learn More »
