It is 33 years now since the IPCC in its first report in 1990 concluded that it is “certain” that greenhouse gas emissions from human activities “will enhance the greenhouse effect, resulting on average in an additional warming of the Earth's surface.” That has indeed happened as predicted, it has been confirmed by a zillion studies and has been scientific consensus for decades. Yet, when the next … Read Full Article about Science denial is still an issue ahead of COP28
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Clauser-ology: Cloudy with a chance of meatballs
John Clauser's theory of climate explained. Some of you will have heard of John Clauser because he was an awardee of the 2022 Nobel Prize in Physics for his role in the experimental verification of quantum entanglement. Some of you will have heard of him because the first thing that he did after winning the Nobel was join a climate denial organization and make some rather odd claims about … Read Full Article about Clauser-ology: Cloudy with a chance of meatballs
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A distraction due to errors, misunderstanding and misguided Norwegian statistics
A friend asked me if a discussion paper published on Statistics Norway’s website, ‘To what extent are temperature levels changing due to greenhouse gas emissions?’, was purposely timed for the next climate summit (COP28). I don’t know the answer to his question. … Read Full Article about A distraction due to errors, misunderstanding and misguided Norwegian statistics
Unforced Variations: Nov 2023
This month's open thread on climate topics. … Read Full Article about Unforced Variations: Nov 2023
The 5th International Conference on Regional Climate
The fifth international conference on regional climate (ICRC 2023), organised by World Climate Research Programme's (WCRP) coordinated downscaling experiment (CORDEX), has just completed. It was a hybrid on-site/online conference with hubs in both Trieste/Italy (hosted by the International Centre on … Read Full Article about The 5th International Conference on Regional Climate
Unforced variations: Oct 2023
This month's open thread on climate topics. Please try to stay on topic and refrain from posting tedious, oft-debunked nonsense. Look out for more reports of ridiculously high global temperatures and intense rainfall, and more confident predictions of the budding El Niño event and annual temperature … Read Full Article about Unforced variations: Oct 2023
Old habits
Media awareness about global warming and climate change has grown fairly steadily since 2004. My impression is that journalists today tend to possess a higher climate literacy than before. This increasing awareness and improved knowledge is encouraging, but there are also some common interpretations … Read Full Article about Old habits
The Scafetta Saga
It has taken 17 months to get a comment published pointing out the obvious errors in the paper in GRL. Back in March 2022, Nicola Scafetta published a short paper in Geophysical Research Letters (GRL) purporting to show through 'advanced' means that 'all models with ECS > 3.0°C overestimate … Read Full Article about The Scafetta Saga
As Soon as Possible
The latest contrarian crowd pleaser from is just the latest repetition of the old "it was the sun wot done it" trope[1] that Willie Soon and his colleagues have been pushing for decades. There is literally nothing new under the sun. … Read Full Article about As Soon as Possible
Unforced variations: Sep 2023
This month's open thread on climate science topics. It's been a warm summer, dontcha know? Expect ERA5, the satellite data and then the surface data products to confirm this in the next week or so. Sea ice minimum in the Arctic will also occur soon, as will a record low maximum in the Antarctic. El … Read Full Article about Unforced variations: Sep 2023
The AMOC: tipping this century, or not?
A few weeks ago, a study by Copenhagen University researchers Peter and Susanne Ditlevsen concluded that the Atlantic Meridional Overturning Circulation (AMOC) is likely to pass a tipping point already this century, most probably around mid-century. Given the catastrophic consequences of an AMOC … Read Full Article about The AMOC: tipping this century, or not?
Unforced Variations: Aug 2023
This month’s open thread for climate topics. Has anyone noticed how warm it’s been? Someone should probably look into that… … Read Full Article about Unforced Variations: Aug 2023