Somewhat breaking news. A court filing (from 9/4) from DOE has noted that the Climate Working Group has been disbanded (as of 9/3). This was done to make the EDF/UCS lawsuit moot, but it also means that DOE is withdrawing the report, no-one will respond appropriately to the comments submitted, and (possibly) it becomes irrelevant for the EPA reconsideration of the Endangerment Finding. What a … Read Full Article about DOE CWG Report “Moot”?
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Climate Scientists response to DOE report
By Gavin 58 Comments
As we've mentioned, Andrew Dessler and Robert Kopp have been coordinating a scientific peer review of the DOW 'CWG' Critique of Climate Science. It is now out. … Read Full Article about Climate Scientists response to DOE report
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Critique of Chapter 6 “Extreme Weather” in the DOE review
By group 55 Comments
Guest commentary by Kerry Emanuel Executive Summary Chapter 6 of the draft DOE report examines whether global warming exacerbates extreme weather. It rightly notes that because events such as hurricanes are rare, detecting their response to climate change in short and imperfect historical … Read Full Article about Critique of Chapter 6 “Extreme Weather” in the DOE review
Unforced Variations: Sep 2025
This month's open thread. As usual try to remain substantive and avoid insults and personal attacks on other commenters. Any sock-puppetry or abusive comments will just be deleted on sight. Also, please don't outsource your comments to ChatGPT - cut-and-pastes of long-winded LLM output are tedious … Read Full Article about Unforced Variations: Sep 2025
Critiques of the ‘Critical Review’
The first somewhat comprehensive reviews of the DOE critical review are now coming online. … Read Full Article about Critiques of the ‘Critical Review’
Unforced Variations: Aug 2025
By group
This month's open thread. Please try and stay focused on substance rather than personalities. There are many real issues that are particularly salient this month, and so maybe we can collectively try not to have the comments descend into tedium. Note: Moderation will be applied to over-frequent … Read Full Article about Unforced Variations: Aug 2025
Are direct water vapor emissions endangering anyone?
By group 65 Comments
In the EPA EF reconsideration document there is a section on p62 where they attempt to make the argument that the CO2 endangerment finding would also apply to direct water vapor emissions to the atmosphere, which is (according to them) obviously absurd. But both claims are bogus. … Read Full Article about Are direct water vapor emissions endangering anyone?
The Endangerment of the Endangerment Finding?
The EPA, along with the "Climate Working Group" (CWG) of usual suspects (plus Judith Curry and Ross McKitrick) at DOE, have just put out a document for public comment their attempt to rescind the 2009 Endangerment Finding for greenhouse gas emissions. … Read Full Article about The Endangerment of the Endangerment Finding?
National Climate Assessment links
By group 11 Comments
For some reason, it has become hard to locate the various National Climate Assessments (NCAs) that have been produced by the USGCRP over the decades (and it's pretty hard to find the USGRCP as well...). However, the reports are still accessible if you know where to look. So for future reference, … Read Full Article about National Climate Assessment links
Ocean circulation going South?
By Gavin
Some intriguing new measurements of salinity in the oceans around Antarctica have set off reams of sensationalist speculations. Maybe some context is helpful... … Read Full Article about Ocean circulation going South?
Melange à Trois
By Gavin
In honor of the revelation today, that Koonin, Christy and Spencer have been made Special Government Employees at the Dept. of Energy, we present a quick round up of our commentary on the caliber of their arguments we've posted here over the last decade or so. TL;DR? The arguments are not very … Read Full Article about Melange à Trois
Unforced variations: July 2025
By group
This month's open thread. Try to stick to climate topics. … Read Full Article about Unforced variations: July 2025