Confirmation bias and a profound lack of curiosity mark the latest ABC (Anything But Carbon) contrapalooza in DC this week and a decade-old albedo error trips them up. … Read Full Article about A reflection on reflection
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Spencer’s Shenanigans: Part II
We previously highlighted Roy Spencer's poor practices in comparing models with observations, but we've now dug down a little deeper, and it's not pretty. … Read Full Article about Spencer’s Shenanigans: Part II
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Unforced Variations: Apr 2026
Somewhat belated open thread for this month! (Oops). Please stick to climate related topics, and remain respectful. … Read Full Article about Unforced Variations: Apr 2026
The Puzzling Pleistocene
The mystery of why the last million or so years of glacial variability are so different to what came before just got more mysterious... … Read Full Article about The Puzzling Pleistocene
How robust is our accelerometer?
Guest commentary from Nathan Lenssen (Colorado School of Mines) A new analysis of historical temperatures suggests that things are getting warmer faster, but what does it mean for the future? … Read Full Article about How robust is our accelerometer?
Unforced Variations: Mar 2026
This month's open thread for climate related topics. … Read Full Article about Unforced Variations: Mar 2026
EPA’s final* ruling on CO2
The EPA has announced its final* ruling on the CO2 Endangerment Finding. *not even close to final. … Read Full Article about EPA’s final* ruling on CO2
The Climate Science reference they don’t want Judges to read
For the first time, the Federal Judicial Center (FJC) commissioned a chapter on climate science for the manual they put out (with the NASEM) for judges, the Reference on Scientific Evidence (4th Edition). This week, a month after it was published, they pulled the chapter out after being pressured by … Read Full Article about The Climate Science reference they don’t want Judges to read
Koonin’s Continuing Calumnies
At a public event debating the DOE CWG report, Steve Koonin embarrasses himself further. … Read Full Article about Koonin’s Continuing Calumnies
Unforced variations: Feb 2026
This month's open thread about climate topics. Try to be substantive and respectful to other commenters. Note: Comments that are abusive and/or repetitive to the point of tedium will be moderated. If you've made the same point ten times already in the thread, and people are still arguing with … Read Full Article about Unforced variations: Feb 2026
2025 Updates
Our various graphics and model-observation comparisons have been updated with 2025 data. There are a few version updates that make some difference (particularly in sea ice extent), but the basic story is similar to last year. Feel free to comment and/or suggest changes for the future, including … Read Full Article about 2025 Updates
A peek behind the curtain…
New email releases from the EDF/UCS lawsuit against the DOE provide a rarely-seen behind the curtain look at how the climate contrarians work. … Read Full Article about A peek behind the curtain…