Which latitudes saw the largest temperature anomalies in 2025?
While the tropics contributed less to 2025’s global temperature anomaly than in 2024 and 2023, the Antarctic region recorded its warmest year on record and the Arctic its 2nd warmest.
🔗 climate.copernicus.eu/global-clima...
@ecmwf.int
#CopernicusClimate has released its first data from the Copernicus pan-Arctic Regional Reanalysis (CARRA2): 2.5 km pan‑Arctic coverage, 24 years of data in the Climate Data Store, more realistic physics & improved details for local extremes, lots of added details with respect to ERA5.
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Climate change is accelerating, with the past 10 years the hottest on record. #C3S Director @carlobuontempo.bsky.social calls attention to this rapid evolution, emphasising the importance of scientific data and knowledge to inform action.
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#CopernicusClimate #COP30
🟥 We've started a new project under the @copernicusecmwf.bsky.social (C3S) for downscaling CMIP6 Climate Projections using #AI techniques to complement the @wcrpclimate.bsky.social CORDEX Regional Climate Models Simulations.
Led by our regular partner @ifca.es.
➡️ More: predictia.es/en/blog/2025...
Latest #Climate data shows a podium finish for 2025
We are in the decade where the 1.5°C limit is likely to be exceeded, highlighting the accelerating pace of climate change
Average global temperature for 2023–2025 is likely to exceed 1.5°C, the first three-year average to do so 🌡️🌏🧪⚒️
Latest bulletin from @copernicusecmwf.bsky.social shows:
October 2025 was the third-warmest October globally, 2025 on track to place second or third, possible tied with 2023, and behind 2024, the warmest year on record
For more insights: climate.copernicus.eu/climate-bull...
New in the Climate Data Store (CDS): the ERA5-Drought dataset, with monthly meteorological drought indicators across accumulation windows from 1, 3, 6, 12, 24, 36 & 48 months from 1940 to today. Supports both deterministic & ensemble products on a 0.25° grid.
More info ⬇️
Source: https://pulse.climate.copernicus.eu/
Global sea surface temperatures continue to cool off as we head into La Nina. 2025 (for the 1st time in 3 years) will not set a new global temperature record.
It's the steady longer-term warming that is cause for concern. It will continue until human carbon emissions cease.
Truth is bad enough.
😂 I don't see much future in this technology. If the uptake is significant the capture potential is ... self-limiting :-)
That's so cool! It reminds me of something rmets.onlinelibrary.wiley.com/doi/10.1256/... ;-) . it is quite incredible to see what 20 years of technical development can mean for our ability to sense the world around us.
LA Fires Credit: Getty Images
The 2024–2025 State of Wildfires report shows a paradox: less land burned, but record carbon released.
ECMWF scientists analysed what drove wildfire events and generated air-quality datasets.
➡️ www.ecmwf.int/en/about/med...
September 2025 was the third warmest on record
Persistently high land and sea surface temperatures reflect the continuing influence of greenhouse gas accumulation in the atmosphere 🌍⚒️🧪🌊
For more: climate.copernicus.eu/copernicus-t...
The @copernicusecmwf.bsky.social climate monitoring application #Climate Pulse has been updated. Same climate monitoring data with new features and better layout. 🌏🌊⚒️🧪
User feedback always welcome so let us know what you would like to see updated in the next version:
pulse.climate.copernicus.eu
Out now! Version 2.0.0 of the Global land surface meteorological observations dataset (1755–present) is available in the #C3S Climate Data Store (CDS). Updated in situ coverage thru 2024 plus enhanced and consolidated data from worldwide sources. 🔗 cds.climate.copernicus.eu/datasets/ins...
We have a new paper out in @science.org today, led by Helge Goessling from #AWI:
The recent global temperature surge in 2023 was intensified by a record-low planetary #albedo
👉 doi.org/10.1126/scie... @thomasjung.bsky.social @ecmwf.bsky.social
This is what we found (🧵1/8)
The @metoffice.gov.uk use weather station observations to reconstruct changes in UK average temperature since 1884.
@copernicusecmwf.bsky.social produce the ERA5 reanalysis which reconstructs global weather every hour back to 1950 using a weather forecast model.
Their estimates agree. Just sayin'.
The records observed in the past years were often “so striking that we’ve occasionally had to stop and triple check the data to make sure it was accurate” says scientist J. Nicolas.
Very nice @data.ft.com piece about this 🤩 viz with
@copernicusecmwf.bsky.social data.
www.ft.com/content/67ec...
🌡 Third-warmest August globally, 1.29°C above pre-industrial level, 0.49°C above the 1991–2020 average for the month. Western Europe saw major heatwaves, mostly in the Iberian Peninsula and southwest France. Third-highest sea surface temperatures on record at 20.82°C.
Happy to have contributed to this paper. Forcing data NRT availability (or lack thereof) is an important limiting factor for the sustained mode of production of climate data and information. We need dedicated resources in support of climate forcing research & operation.
Everybody is talking about heatwaves these days. This morning @copernicusecmwf.bsky.social published a new app about thermal stress and its time evolution. You can access the app here: thermaltrace.climate.copernicus.eu & read more about it here: climate.copernicus.eu/thermal-trac...
Right then...
A quick review of the DOE's new 'critical review' of climate science. Whether it's worth a formal community response - I'm still not sure, but here's my first thoughts
/thread/
Twelve polar stereographic maps showing 2-m air temperature anomalies in the Arctic from July 2024 to June 2025. Blue shading is shown for colder anomalies, and red shading is shown for warmer anomalies. All months are warmer than average overall. Anomalies are computed relative to a 1981-2010 baseline.
The patterns of temperature anomalies across the #Arctic region over the last 12 months...
Data using @copernicusecmwf.bsky.social ERA5 reanalysis with a 1981-2010 reference period.
I do enjoy radiolab. It use to be much better some 10 years ago but the most recent episodes seems to suggest a possible come back to that old amazing level. On politics TheRestIsPolitics is great though.
The paper is so absurd that you are bound to think this is a joke to orchestrated to make a point (of some sort). Is there any chance this is the case?
Tropical nights are on the rise in Europe, offering little relief from daytime heat. The Copernicus Climate Change Service tracks these trends to help keep communities informed and safe.
Read more in our European State of the Climate report: climate.copernicus.eu/esotc/2024
#CopernicusClimate
🔉 ECMWF has announced the appointment of Florian Pappenberger as its next Director-General. He will take up the post on 1 January 2026.
Read more in our web article
➡️ www.ecmwf.int/en/about/med...
@fpappenberger.bsky.social
Y así estamos terminando junio y empezando julio. 🫠🥵
149 días con anomalía positiva, de los cuáles 56 días son extremos. 🌡️
Western Europe is experiencing its second heatwave of the summer. For the continent as a whole, this June is likely to be one of the five warmest on record.
Read the press release: climate.copernicus.eu/ecmwf-weathe...
@ecmwf.int @oceanterra.org @carlobuontempo.bsky.social
Y sólo acabamos de empezar el verano, temperaturas encima de lo normal incluso para julio/augusto. 🫠🥵
143 días con anomalía positiva, de los cuáles 50 días son extremos. 🌡️
Call for tenders! We’re seeking proposals to advance multi-scale ocean data assimilation for climate reanalyses & seasonal forecasts.
💶 Value: €1.35M
⏰ Deadline: 13 August 2025, 16:00 CET
🔗 More info: climate.copernicus.eu/c3s2601bis-a...
#CopernicusClimate
