This is going to be useful: The CMIP Rapid Evaluation Framework (REF) for derived data from the CMIP archives:
dashboard.climate-ref.org
Still working out the kinks and focused on CMIP6, but will expand for CMIP7.
#CMIP2026
dashboard.climate-ref.org
Still working out the kinks and focused on CMIP6, but will expand for CMIP7.
#CMIP2026
Rapid Evaluation Framework
dashboard.climate-ref.org
March 9, 2026 at 5:35 AM
This is going to be useful: The CMIP Rapid Evaluation Framework (REF) for derived data from the CMIP archives:
dashboard.climate-ref.org
Still working out the kinks and focused on CMIP6, but will expand for CMIP7.
#CMIP2026
dashboard.climate-ref.org
Still working out the kinks and focused on CMIP6, but will expand for CMIP7.
#CMIP2026
just finished downloading the NASA CMIP climate projection data and seeding to keep a good seed-to-leach ratio
September 25, 2026 at 4:05 PM
just finished downloading the NASA CMIP climate projection data and seeding to keep a good seed-to-leach ratio
Every time “CMIP scenarios” are called “IPCC scenarios” is a communication failure.
September 14, 2025 at 4:56 PM
Every time “CMIP scenarios” are called “IPCC scenarios” is a communication failure.
Het is niet het IPCC dat het RCP 8.5-scenario niet meer meeneemt, maar het CMIP-onderzoeksproject van het WCRP (wcrp-cmip.org). Het is ook niet terecht om te zeggen dat RCP 8.5 "geschrapt" is. Het pakket emissiescenario's heeft een update gekregen. Ook het laagste scenario is naar boven bijgesteld.
CMIP - Coupled Model Intercomparison Project
CMIP is a project of the World Climate Research Programme (WCRP) providing climate projections to understand past, present and future climate changes. CMIP
wcrp-cmip.org
May 6, 2026 at 11:58 AM
Het is niet het IPCC dat het RCP 8.5-scenario niet meer meeneemt, maar het CMIP-onderzoeksproject van het WCRP (wcrp-cmip.org). Het is ook niet terecht om te zeggen dat RCP 8.5 "geschrapt" is. Het pakket emissiescenario's heeft een update gekregen. Ook het laagste scenario is naar boven bijgesteld.
CMIP scenarios are there to provide a broad range of common experiments against which to evaluate Earth system model projections, not to forecast likely future emissions.
September 14, 2025 at 4:56 PM
CMIP scenarios are there to provide a broad range of common experiments against which to evaluate Earth system model projections, not to forecast likely future emissions.
Holy cow! CMIP is not a fringe climate model. It is the most commonly used model in the US and well validated. If anything , it has under-predicted extreme events.
I was shocked when I first saw these results from standard climate models used in IPCC reports: for high emissions, the Atlantic overturning circulation #AMOC shuts down in all 9 models that ran past 2100, and is well on the way to shutdown by 2100.
Our paper on that is out today.🧵
Our paper on that is out today.🧵
August 28, 2025 at 5:06 PM
Holy cow! CMIP is not a fringe climate model. It is the most commonly used model in the US and well validated. If anything , it has under-predicted extreme events.
The NOAA layoffs aren't just crude, they're a direct attack on US capacity to do climate science by firing highly productive young researchers. @zachlabe.com has an insanely strong publication history, part of the Fresh eyes CMIP team, WMO task teams etc. /1 www.gfdl.noaa.gov/zachary-labe/
February 28, 2025 at 7:19 AM
The NOAA layoffs aren't just crude, they're a direct attack on US capacity to do climate science by firing highly productive young researchers. @zachlabe.com has an insanely strong publication history, part of the Fresh eyes CMIP team, WMO task teams etc. /1 www.gfdl.noaa.gov/zachary-labe/
This is a quick summary of the latest CMIP process. It is a complex beast and a consensus project so there are always things that you’ll agree with and those that you might not. 1/
Guest post: How CMIP7 will shape the next wave of climate science
✍️ written by Beth Dingley, Helene Hewitt, John Dunne and Eleanor O'Rourke
Read here ⬇️
✍️ written by Beth Dingley, Helene Hewitt, John Dunne and Eleanor O'Rourke
Read here ⬇️
Guest post: How CMIP7 will shape the next wave of climate science - Carbon Brief
Hundreds of scientists in dozens of institutions are embarking on the next phase of the world’s largest coordinated climate-modelling effort.
www.carbonbrief.org
May 22, 2026 at 2:37 PM
This is a quick summary of the latest CMIP process. It is a complex beast and a consensus project so there are always things that you’ll agree with and those that you might not. 1/
Look, i’m not saying that the CMIP model-obs discrepancy in EEI is not a thing.
All i’m saying is i lived through the Hiatus.
All i’m saying is i lived through the Hiatus.
May 8, 2026 at 9:27 PM
Look, i’m not saying that the CMIP model-obs discrepancy in EEI is not a thing.
All i’m saying is i lived through the Hiatus.
All i’m saying is i lived through the Hiatus.
In our new preprint, members of 'Fresh Eyes on CMIP' led by @flossie-brown.bsky.social and @sabinebischof.bsky.social synthesise key systematic biases across the Earth System in @wcrp-cmip.org CMIP models across different generations.
egusphere.copernicus.org/preprints/20...
egusphere.copernicus.org/preprints/20...
Fresh Eyes on CMIP Model Biases: Diagnosing Biases Across CMIP Generations and Implications for CMIP7
Abstract. The Coupled Model Intercomparison Project (CMIP) simulates standardized experiments spanning historical, future, and hypothetical conditions, to better understand the Earth system's evolutio...
egusphere.copernicus.org
July 17, 2026 at 9:17 AM
In our new preprint, members of 'Fresh Eyes on CMIP' led by @flossie-brown.bsky.social and @sabinebischof.bsky.social synthesise key systematic biases across the Earth System in @wcrp-cmip.org CMIP models across different generations.
egusphere.copernicus.org/preprints/20...
egusphere.copernicus.org/preprints/20...
Reminder: call for abstracts for the CMIP Community Workshops. Latest developments in models & approaches, reflections on CMIP6, explorations on CMIP7, etc.
In particular for those related to climate emulators, I encourage you to check the session 29.
All info here: wcrp-cmip.org/event/cmip26/
In particular for those related to climate emulators, I encourage you to check the session 29.
All info here: wcrp-cmip.org/event/cmip26/
June 12, 2025 at 3:22 PM
Reminder: call for abstracts for the CMIP Community Workshops. Latest developments in models & approaches, reflections on CMIP6, explorations on CMIP7, etc.
In particular for those related to climate emulators, I encourage you to check the session 29.
All info here: wcrp-cmip.org/event/cmip26/
In particular for those related to climate emulators, I encourage you to check the session 29.
All info here: wcrp-cmip.org/event/cmip26/
Interesting: A Perspective on the Future of CMIP doi.org/10.1029/2023...
February 23, 2024 at 11:43 AM
Interesting: A Perspective on the Future of CMIP doi.org/10.1029/2023...
Outcome is that CMIP models underestimate future drought risk…
September 4, 2025 at 4:28 AM
Outcome is that CMIP models underestimate future drought risk…
EGU25 CMIP Forcings session (anthro + natural).
Abstract submission deadline: 15 January 13:00 CET(!)
Link: meetingorganizer.copernicus.org/EGU25/sessio...
Submit anything that deals with:
- responses to forcing changes;
- uses CMIP7, CMIP6, or other CMIP phases
Please circulate!
...
Abstract submission deadline: 15 January 13:00 CET(!)
Link: meetingorganizer.copernicus.org/EGU25/sessio...
Submit anything that deals with:
- responses to forcing changes;
- uses CMIP7, CMIP6, or other CMIP phases
Please circulate!
...
December 16, 2024 at 9:59 AM
EGU25 CMIP Forcings session (anthro + natural).
Abstract submission deadline: 15 January 13:00 CET(!)
Link: meetingorganizer.copernicus.org/EGU25/sessio...
Submit anything that deals with:
- responses to forcing changes;
- uses CMIP7, CMIP6, or other CMIP phases
Please circulate!
...
Abstract submission deadline: 15 January 13:00 CET(!)
Link: meetingorganizer.copernicus.org/EGU25/sessio...
Submit anything that deals with:
- responses to forcing changes;
- uses CMIP7, CMIP6, or other CMIP phases
Please circulate!
...
somewhat against my better judgement, I signed up for remote attendance for the #CMIP2026 conference starting in two hours (in Japan). It runs 8pm to 4am (NY time) for the next week. People trying to get anything from me over this period are going to be disappointed. 🤷
cmip2026.org
cmip2026.org
Home - CMIP Community Workshop 2026
The CMIP Community Workshop 2026 will bring together a growing, and increasingly diverse, community of Earth system scientists, partners, and stakeholders. The workshop will be an opportunity to discu...
cmip2026.org
March 8, 2026 at 10:13 PM
somewhat against my better judgement, I signed up for remote attendance for the #CMIP2026 conference starting in two hours (in Japan). It runs 8pm to 4am (NY time) for the next week. People trying to get anything from me over this period are going to be disappointed. 🤷
cmip2026.org
cmip2026.org
Updating with the last few months of CERES EBAF data, and putting it in the context of the CMIP models - I'm a bit less panicked about the Earth Energy Imbalance (still higher than the CMIP average, which remains concerning - but at least the numbers at the start of the year were a local maximum)
August 21, 2024 at 6:37 PM
Updating with the last few months of CERES EBAF data, and putting it in the context of the CMIP models - I'm a bit less panicked about the Earth Energy Imbalance (still higher than the CMIP average, which remains concerning - but at least the numbers at the start of the year were a local maximum)
Darin steckt kein wissenschaftlicher Widerspruch: Beim in der neuen CMIP-Studie „abgeblasenen“ Emissionsszenario RCP8.5 geht es schließlich im Wesentlichen darum, wie viele Treibhausgase rausgeblasen werden. Alarmierende neue Forschung dreht sich meist um Feedbackeffekte.
10/
10/
June 9, 2026 at 6:04 AM
Darin steckt kein wissenschaftlicher Widerspruch: Beim in der neuen CMIP-Studie „abgeblasenen“ Emissionsszenario RCP8.5 geht es schließlich im Wesentlichen darum, wie viele Treibhausgase rausgeblasen werden. Alarmierende neue Forschung dreht sich meist um Feedbackeffekte.
10/
10/
📣 ANNOUNCEMENT!!
WCRP endorses CMIP 7 scenarios proposed by ScenarioMIP as part of the @wcrp-cmip.org Project suite of experiments, featuring 6 future climate scenarios.
🔗 Read and download the endorsement here: loom.ly/zS29hMU
#ClimateChange #ClimateAction
WCRP endorses CMIP 7 scenarios proposed by ScenarioMIP as part of the @wcrp-cmip.org Project suite of experiments, featuring 6 future climate scenarios.
🔗 Read and download the endorsement here: loom.ly/zS29hMU
#ClimateChange #ClimateAction
Joint Endorsement Statement on the Process and Proposed Scenarios for CMIP7
WCRP Joint Scientific Committee (JSC) has formally endorsed the process and scenarios proposed by ScenarioMIP as part of the Coupled Model Intercomparison Project (CMIP) suite of experiments. Click he...
loom.ly
February 20, 2025 at 8:03 AM
📣 ANNOUNCEMENT!!
WCRP endorses CMIP 7 scenarios proposed by ScenarioMIP as part of the @wcrp-cmip.org Project suite of experiments, featuring 6 future climate scenarios.
🔗 Read and download the endorsement here: loom.ly/zS29hMU
#ClimateChange #ClimateAction
WCRP endorses CMIP 7 scenarios proposed by ScenarioMIP as part of the @wcrp-cmip.org Project suite of experiments, featuring 6 future climate scenarios.
🔗 Read and download the endorsement here: loom.ly/zS29hMU
#ClimateChange #ClimateAction
First runs should be ongoing and preliminary results published soon:
wcrp-cmip.org/cmip-phases/....
wcrp-cmip.org/cmip-phases/....
November 1, 2025 at 3:02 PM
First runs should be ongoing and preliminary results published soon:
wcrp-cmip.org/cmip-phases/....
wcrp-cmip.org/cmip-phases/....
Climate models haven't always predicted everything well. The curious story of Arctic sea ice trends...
RealClimate: Predicted Arctic sea ice trends over time
www.realclimate.org/index.php/ar...
RealClimate: Predicted Arctic sea ice trends over time
www.realclimate.org/index.php/ar...
RealClimate: Predicted Arctic sea ice trends over time
RealClimate: Over multiple generations of CMIP models Arctic sea ice trend predictions have gone from much too stable to about right. Why? The diagnostics highlighted in our model-observations compari...
www.realclimate.org
May 31, 2025 at 10:54 PM
Climate models haven't always predicted everything well. The curious story of Arctic sea ice trends...
RealClimate: Predicted Arctic sea ice trends over time
www.realclimate.org/index.php/ar...
RealClimate: Predicted Arctic sea ice trends over time
www.realclimate.org/index.php/ar...
But that is just a short cut, and it is not the job of CMIP scenarios to assign likelihood to different experiments.
September 14, 2025 at 5:09 PM
But that is just a short cut, and it is not the job of CMIP scenarios to assign likelihood to different experiments.
I’m not sure he’s right that SSP5-8.5 is used disproportionately in current papers intended to inform policy — that needs more analysis than a Google Scholar search — but the correct solution is to recognize that CMIP is not IPCC, they have different purposes…
September 14, 2025 at 4:56 PM
I’m not sure he’s right that SSP5-8.5 is used disproportionately in current papers intended to inform policy — that needs more analysis than a Google Scholar search — but the correct solution is to recognize that CMIP is not IPCC, they have different purposes…
Finally out! The outcome of a virtual workshop in Feb 2024 with modelers and observationalists to put together data and protocols to include historical changes in ice sheet/ice shelf discharge in CMIP models. Hopefully not too late for some CMIP7 runs!
gmd.copernicus.org/articles/18/...
gmd.copernicus.org/articles/18/...
Datasets and protocols for including anomalous freshwater from melting ice sheets in climate simulations
Abstract. Anomalous freshwater fluxes from the Greenland and Antarctic ice sheets and ice shelves are impacting the surrounding oceans, and we need to be able to account for these effects in climate m...
gmd.copernicus.org
November 7, 2025 at 9:31 PM
Finally out! The outcome of a virtual workshop in Feb 2024 with modelers and observationalists to put together data and protocols to include historical changes in ice sheet/ice shelf discharge in CMIP models. Hopefully not too late for some CMIP7 runs!
gmd.copernicus.org/articles/18/...
gmd.copernicus.org/articles/18/...
Cannot now remember a time before we were Finishing the Earth System Model for CMIP. Please check in on your ESM model developer friends. They might well need more chocolate...
October 2, 2025 at 11:15 PM
Cannot now remember a time before we were Finishing the Earth System Model for CMIP. Please check in on your ESM model developer friends. They might well need more chocolate...