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Featured Story

“The Arctic Council is not dead”

30 May 2026 by rasmus 19 Comments

The 4th UArctic congress on the Faroe islands finished with the message that the Arctic Council is still alive. It has overcome recent setbacks with difficulties concerning two of its member states, Russia and the US. The Arctic Council represents 8 nations together with indigenous peoples and has observers from around the world, and this wide-ranging diversity of course coloured the congress. It was allegedly the largest scientific conference on the Faroe islands ever, as it was combined with the Oceans Connectivity Conference.

[Read more…] about “The Arctic Council is not dead”

Filed Under: Arctic and Antarctic, Climate conference report, Climate impacts, Climate Science, Communicating Climate, Featured Story, Geoengineering, Greenhouse gases, Oceans

Scenarios, schmenarios…

20 May 2026 by Gavin 66 Comments

The fantasy version of the normal updating of scenarios for a new round of CMIP simulations doing the rounds is bad faith BS.

[Read more…] about Scenarios, schmenarios…

Filed Under: Aerosols, Climate impacts, Climate modelling, Climate Science, Featured Story, Greenhouse gases, In the News, IPCC, Reporting on climate, Scientific practice Tagged With: CMIP6, CMIP7, projections, RCP85, SSP585

A reflection on reflection

13 Apr 2026 by Gavin 246 Comments

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 more…] about A reflection on reflection

Filed Under: Climate modelling, Climate Science, Featured Story, Instrumental Record, Scientific practice, skeptics Tagged With: albedo, CMIP5, CMIP6, Earth's Energy Imbalance, Heartland Institute, John Clauser, Willie Soon

Spencer’s Shenanigans: Part II

4 Apr 2026 by Gavin

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 more…] about Spencer’s Shenanigans: Part II

Filed Under: Climate modelling, Climate Science, Featured Story, Instrumental Record, Model-Obs Comparisons, skeptics Tagged With: CWG, Roy Spencer

The Puzzling Pleistocene

18 Mar 2026 by Gavin

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 more…] about The Puzzling Pleistocene

Filed Under: Carbon cycle, Climate Science, Featured Story, Greenhouse gases, Oceans, Paleoclimate Tagged With: mid-pleistocene transition

How robust is our accelerometer?

8 Mar 2026 by group

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 more…] about How robust is our accelerometer?

Filed Under: Climate modelling, Climate Science, El Nino, Featured Story, Greenhouse gases, Instrumental Record, Model-Obs Comparisons, statistics Tagged With: acceleration, CMIP6

EPA’s final* ruling on CO2

13 Feb 2026 by group

The EPA has announced its final* ruling on the CO2 Endangerment Finding.

*not even close to final.

[Read more…] about EPA’s final* ruling on CO2

Filed Under: Climate modelling, Climate Science, Featured Story, Solutions Tagged With: DOE, Endangerment Finding, EPA

The Climate Science reference they don’t want Judges to read

9 Feb 2026 by group

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 27 Republican Attorneys General. You can nonetheless read it here.

[Read more…] about The Climate Science reference they don’t want Judges to read

Filed Under: Climate modelling, Climate Science, climate services, Featured Story, In the News, Instrumental Record Tagged With: attribution, climate law, DOE, FJC, Jessica Wentz, Radley Horton

Koonin’s Continuing Calumnies

7 Feb 2026 by Gavin

At a public event debating the DOE CWG report, Steve Koonin embarrasses himself further.

[Read more…] about Koonin’s Continuing Calumnies

Filed Under: Climate modelling, Climate Science, Featured Story, Instrumental Record, Model-Obs Comparisons, skeptics Tagged With: CMIP6, CWG, DOE, Scafetta, Steve Koonin

2025 Updates

27 Jan 2026 by group

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 potential new comparisons.

Filed Under: Climate modelling, Climate Science, Featured Story, Instrumental Record, Model-Obs Comparisons Tagged With: CMIP3, CMIP5, CMIP6, MSU, SSU

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