Carlo Buontempo
@carlobuontempo.bsky.social
Physicist working on Climate | Copernicus @ecmwf | data, society and decisions | services. Opinions are my own.
Reposted by Carlo Buontempo
🟥 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...
Led by our regular partner @ifca.es.
➡️ More: predictia.es/en/blog/2025...
November 17, 2025 at 10:29 AM
🟥 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...
Led by our regular partner @ifca.es.
➡️ More: predictia.es/en/blog/2025...
Reposted by Carlo Buontempo
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 🌡️🌏🧪⚒️
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 🌡️🌏🧪⚒️
November 7, 2025 at 7:46 AM
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 🌡️🌏🧪⚒️
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 🌡️🌏🧪⚒️
Reposted by Carlo Buontempo
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...
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...
November 7, 2025 at 7:49 AM
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...
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...
Reposted by Carlo Buontempo
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 ⬇️
More info ⬇️
October 31, 2025 at 9:42 AM
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 ⬇️
More info ⬇️
Reposted by Carlo Buontempo
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.
It's the steady longer-term warming that is cause for concern. It will continue until human carbon emissions cease.
Truth is bad enough.
October 24, 2025 at 12:17 PM
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.
It's the steady longer-term warming that is cause for concern. It will continue until human carbon emissions cease.
Truth is bad enough.
Reposted by Carlo Buontempo
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...
ECMWF scientists analysed what drove wildfire events and generated air-quality datasets.
➡️ www.ecmwf.int/en/about/med...
October 16, 2025 at 8:18 AM
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...
ECMWF scientists analysed what drove wildfire events and generated air-quality datasets.
➡️ www.ecmwf.int/en/about/med...
Reposted by Carlo Buontempo
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...
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...
October 9, 2025 at 6:30 AM
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...
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...
Reposted by Carlo Buontempo
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
User feedback always welcome so let us know what you would like to see updated in the next version:
pulse.climate.copernicus.eu
October 8, 2025 at 10:04 AM
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
User feedback always welcome so let us know what you would like to see updated in the next version:
pulse.climate.copernicus.eu
Reposted by Carlo Buontempo
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...
October 8, 2025 at 9:24 AM
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...
Reposted by Carlo Buontempo
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 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)
Recent global temperature surge intensified by record-low planetary albedo
In 2023, the global mean temperature soared to almost 1.5K above the pre-industrial level, surpassing the previous record by about 0.17K. Previous best-guess estimates of known drivers including anthr...
doi.org
December 5, 2024 at 7:18 PM
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 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)
Reposted by Carlo Buontempo
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'.
@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'.
October 6, 2025 at 9:03 AM
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'.
@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'.
Reposted by Carlo Buontempo
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...
Very nice @data.ft.com piece about this 🤩 viz with
@copernicusecmwf.bsky.social data.
www.ft.com/content/67ec...
September 26, 2025 at 7:32 AM
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...
Very nice @data.ft.com piece about this 🤩 viz with
@copernicusecmwf.bsky.social data.
www.ft.com/content/67ec...
Reposted by Carlo Buontempo
🌡 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.
September 9, 2025 at 7:22 AM
🌡 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.
Annual updates to ‘climate forcing’ data sets would allow simulations to keep pace as global warming accelerates.
go.nature.com/45N9aXt
go.nature.com/45N9aXt
Climate models need more frequent releases of input data — here’s how to do it
Annual updates to ‘climate forcing’ data sets would allow simulations to keep pace as global warming accelerates.
go.nature.com
August 26, 2025 at 12:30 PM
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...
Thermal trace: Decades of heat and cold stress data at your fingertips
The new Thermal Trace application, developed by the Copernicus Climate Change Service (C3S) and ECMWF*, allows us to explore, visualise, share and extract over 80 years of thermal stress data in a few...
climate.copernicus.eu
August 20, 2025 at 8:27 AM
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...
Reposted by Carlo Buontempo
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/
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/
I can't imagine there will be any problems with this summary of climate science
July 30, 2025 at 2:33 PM
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/
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/
Reposted by Carlo Buontempo
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.
Data using @copernicusecmwf.bsky.social ERA5 reanalysis with a 1981-2010 reference period.
July 29, 2025 at 1:01 PM
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.
Data using @copernicusecmwf.bsky.social ERA5 reanalysis with a 1981-2010 reference period.
Reposted by Carlo Buontempo
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
Read more in our European State of the Climate report: climate.copernicus.eu/esotc/2024
#CopernicusClimate
July 28, 2025 at 12:40 PM
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
Read more in our European State of the Climate report: climate.copernicus.eu/esotc/2024
#CopernicusClimate
Reposted by Carlo Buontempo
🔉 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
Read more in our web article
➡️ www.ecmwf.int/en/about/med...
@fpappenberger.bsky.social
July 4, 2025 at 8:05 AM
🔉 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
Read more in our web article
➡️ www.ecmwf.int/en/about/med...
@fpappenberger.bsky.social
Reposted by Carlo Buontempo
Y así estamos terminando junio y empezando julio. 🫠🥵
149 días con anomalía positiva, de los cuáles 56 días son extremos. 🌡️
149 días con anomalía positiva, de los cuáles 56 días son extremos. 🌡️
July 2, 2025 at 3:20 PM
Y así estamos terminando junio y empezando julio. 🫠🥵
149 días con anomalía positiva, de los cuáles 56 días son extremos. 🌡️
149 días con anomalía positiva, de los cuáles 56 días son extremos. 🌡️
Reposted by Carlo Buontempo
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
Read the press release: climate.copernicus.eu/ecmwf-weathe...
@ecmwf.int @oceanterra.org @carlobuontempo.bsky.social
July 1, 2025 at 12:45 PM
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
Read the press release: climate.copernicus.eu/ecmwf-weathe...
@ecmwf.int @oceanterra.org @carlobuontempo.bsky.social
Reposted by Carlo Buontempo
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. 🌡️
143 días con anomalía positiva, de los cuáles 50 días son extremos. 🌡️
June 26, 2025 at 10:14 AM
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. 🌡️
143 días con anomalía positiva, de los cuáles 50 días son extremos. 🌡️
Reposted by Carlo Buontempo
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
💶 Value: €1.35M
⏰ Deadline: 13 August 2025, 16:00 CET
🔗 More info: climate.copernicus.eu/c3s2601bis-a...
#CopernicusClimate
June 27, 2025 at 7:28 AM
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
💶 Value: €1.35M
⏰ Deadline: 13 August 2025, 16:00 CET
🔗 More info: climate.copernicus.eu/c3s2601bis-a...
#CopernicusClimate
Reposted by Carlo Buontempo
Connect with #CopernicusClimate director @carlobuontempo.bsky.social at the meet-and-greet event today at #LPS25. Visit the @ecmwf.int booth between 1.30pm and 2.30pm to discuss the latest developments in climate monitoring and more.
🔴 climate.copernicus.eu/living-plane...
🔴 climate.copernicus.eu/living-plane...
June 25, 2025 at 8:21 AM
Connect with #CopernicusClimate director @carlobuontempo.bsky.social at the meet-and-greet event today at #LPS25. Visit the @ecmwf.int booth between 1.30pm and 2.30pm to discuss the latest developments in climate monitoring and more.
🔴 climate.copernicus.eu/living-plane...
🔴 climate.copernicus.eu/living-plane...
Reposted by Carlo Buontempo
Discover our new dataset from #CopernicusClimate! Now featuring year-round windstorm indicators from #ERA5 reanalyses. Access detailed tracks, footprints and summary stats updated monthly. Explore the dataset cds.climate.copernicus.eu/datasets/sis...
June 12, 2025 at 9:14 AM
Discover our new dataset from #CopernicusClimate! Now featuring year-round windstorm indicators from #ERA5 reanalyses. Access detailed tracks, footprints and summary stats updated monthly. Explore the dataset cds.climate.copernicus.eu/datasets/sis...