Tim Osborn
@timosbornclim.bsky.social
Climate variability and change | Professor of Climate Science & Director of Climatic Research Unit | UEA | Views expressed here are my own, not UEA's
Pinned
Tim Osborn
@timosbornclim.bsky.social
· Nov 25
I currently have three funded PhD positions available for applications. Links for more info and to apply are in my profile page: research-portal.uea.ac.uk/en/persons/t...
Reposted by Tim Osborn
And, if you prefer more details, then a graphic with a more complete range of indicators is also available, including Arctic sea ice, ocean heat content, tropospheric temperatures, cherry blossom dates and humidity over land.
ed-hawkins.github.io/climate-visu...
ed-hawkins.github.io/climate-visu...
February 13, 2026 at 1:16 PM
And, if you prefer more details, then a graphic with a more complete range of indicators is also available, including Arctic sea ice, ocean heat content, tropospheric temperatures, cherry blossom dates and humidity over land.
ed-hawkins.github.io/climate-visu...
ed-hawkins.github.io/climate-visu...
Reposted by Tim Osborn
Another entry citing a dominant role for La Nina to El Nino swing for the 2023 temperature spike. Going to be hard to write more stories on this until something definitive comes out.
Or maybe that's not possible? And we just have to wait for the surface temperature record to clear it up.
Or maybe that's not possible? And we just have to wait for the surface temperature record to clear it up.
Multi-year La Niña–El Niño transition influenced Earth’s extreme energy uptake in 2022–2023 - Nature Geoscience
The extreme Earth heat uptake in 2022–2023 was mainly driven by the transition from multi-year La Niña to El Niño and a positive energy imbalance linked to human-induced warming, according to multi-mo...
www.nature.com
February 13, 2026 at 8:14 PM
Another entry citing a dominant role for La Nina to El Nino swing for the 2023 temperature spike. Going to be hard to write more stories on this until something definitive comes out.
Or maybe that's not possible? And we just have to wait for the surface temperature record to clear it up.
Or maybe that's not possible? And we just have to wait for the surface temperature record to clear it up.
Reposted by Tim Osborn
DCENT-I is a globally complete version of DCENT, the result of a major research effort led by Dr Duo Chan: starting as a PhD student at Harvard, continuing at WHOI, and now at the University of Southampton. DCENT adds to the ensemble of global surface temperature estimates.
wmo.int/news/media-c...
wmo.int/news/media-c...
WMO confirms 2025 was one of warmest years on record
wmo.int
February 13, 2026 at 11:15 AM
DCENT-I is a globally complete version of DCENT, the result of a major research effort led by Dr Duo Chan: starting as a PhD student at Harvard, continuing at WHOI, and now at the University of Southampton. DCENT adds to the ensemble of global surface temperature estimates.
wmo.int/news/media-c...
wmo.int/news/media-c...
Reposted by Tim Osborn
The paper describing the new DCENT-I dataset of monthly global surface temperature since 1850 is just published.
rmets.onlinelibrary.wiley.com/doi/10.1002/...
rmets.onlinelibrary.wiley.com/doi/10.1002/...
DCENT‐I: A Globally Infilled Extension of the Dynamically Consistent ENsemble of Temperature Dataset
DCENT-I infills data gaps in DCENT, producing spatially coherent temperature fields (top) and a slightly higher GMST warming estimate (bottom). Top: December 1877 temperature anomalies (°C; 1961–1990...
rmets.onlinelibrary.wiley.com
February 13, 2026 at 11:08 AM
The paper describing the new DCENT-I dataset of monthly global surface temperature since 1850 is just published.
rmets.onlinelibrary.wiley.com/doi/10.1002/...
rmets.onlinelibrary.wiley.com/doi/10.1002/...
Reposted by Tim Osborn
I've been getting a lot of requests from reporters for comments about the removal of the DOE Climate Working Group report from the EPA's repeal of the endangerment finding.
Here are some comments:
Here are some comments:
February 13, 2026 at 6:13 PM
I've been getting a lot of requests from reporters for comments about the removal of the DOE Climate Working Group report from the EPA's repeal of the endangerment finding.
Here are some comments:
Here are some comments:
Reposted by Tim Osborn
The important dates that climate researchers and academics need to know about in 2026 in climate science and research, from major policy milestones to landmark scientific reports ➡️ tyndall.ac.uk/news/the-com...
What are we missing? #ClimateResearch #ClimateChange #AcademySky
What are we missing? #ClimateResearch #ClimateChange #AcademySky
February 12, 2026 at 6:25 PM
The important dates that climate researchers and academics need to know about in 2026 in climate science and research, from major policy milestones to landmark scientific reports ➡️ tyndall.ac.uk/news/the-com...
What are we missing? #ClimateResearch #ClimateChange #AcademySky
What are we missing? #ClimateResearch #ClimateChange #AcademySky
Reposted by Tim Osborn
Public service email to everyone heading into the UK at the end of this month who isn't a UK or Irish citizen. The ETA requirement for UK entry is coming and isn't receiving enough advanced coverage. Don't get caught in the ensuing chaos:
homeofficemedia.blog.gov.uk/electronic-t...
homeofficemedia.blog.gov.uk/electronic-t...
February 6, 2026 at 1:13 PM
Public service email to everyone heading into the UK at the end of this month who isn't a UK or Irish citizen. The ETA requirement for UK entry is coming and isn't receiving enough advanced coverage. Don't get caught in the ensuing chaos:
homeofficemedia.blog.gov.uk/electronic-t...
homeofficemedia.blog.gov.uk/electronic-t...
Reposted by Tim Osborn
I calculated the daily average sea level across all 14 tide gauges in Finnish coast (1000 km coastline) for 1971–2026.
The results show that the average sea level in the Baltic Sea has been historically low in recent days, with an average of -79 cm on 6 February 2026.
The results show that the average sea level in the Baltic Sea has been historically low in recent days, with an average of -79 cm on 6 February 2026.
February 11, 2026 at 10:21 AM
I calculated the daily average sea level across all 14 tide gauges in Finnish coast (1000 km coastline) for 1971–2026.
The results show that the average sea level in the Baltic Sea has been historically low in recent days, with an average of -79 cm on 6 February 2026.
The results show that the average sea level in the Baltic Sea has been historically low in recent days, with an average of -79 cm on 6 February 2026.
Reposted by Tim Osborn
Patagonian wildfires show how denying climate change & pushing environmental destruction make the reality of climate change much worse. Threatening the destruction of trees that have been alive when the bronze age collapsed. @wwattribution.bsky.social www.worldweatherattribution.org/climate-chan...
February 11, 2026 at 9:13 AM
Patagonian wildfires show how denying climate change & pushing environmental destruction make the reality of climate change much worse. Threatening the destruction of trees that have been alive when the bronze age collapsed. @wwattribution.bsky.social www.worldweatherattribution.org/climate-chan...
Reposted by Tim Osborn
Disappointing to still see such solar-climate nonsense claims in scientific literature. The Maunder Minimum did NOT lead "to a drop in global average temperatures by between 1 and 2°C"
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Tracing the origins of Stradivari’s resonance wood
Stradivari’s violins represent the pinnacle of classical instrument making, yet the origins of the wood used to construct their soundboards have long …
www.sciencedirect.com
February 9, 2026 at 10:15 AM
Disappointing to still see such solar-climate nonsense claims in scientific literature. The Maunder Minimum did NOT lead "to a drop in global average temperatures by between 1 and 2°C"
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Tim Osborn
👏 Heroic effort to extract a H₂ record from ice cores 👏
The samples had to measured in the field immediately after drilling (i.e. fresh out the oven 🥮) to prevent the tiny H₂ molecules from leaking out.
www.nature.com/articles/s41...
The samples had to measured in the field immediately after drilling (i.e. fresh out the oven 🥮) to prevent the tiny H₂ molecules from leaking out.
www.nature.com/articles/s41...
Atmospheric H2 variability over the past 1,100 years - Nature
Analysis of the atmospheric H2 variability over the past millennium suggests that the sensitivity of H2 to climate change should be considered in estimates of the radiative consequences of rising...
www.nature.com
February 9, 2026 at 10:21 AM
👏 Heroic effort to extract a H₂ record from ice cores 👏
The samples had to measured in the field immediately after drilling (i.e. fresh out the oven 🥮) to prevent the tiny H₂ molecules from leaking out.
www.nature.com/articles/s41...
The samples had to measured in the field immediately after drilling (i.e. fresh out the oven 🥮) to prevent the tiny H₂ molecules from leaking out.
www.nature.com/articles/s41...
Reposted by Tim Osborn
NEW: Reform UK’s flagship council, Kent, has been accused of telling a “blatant lie” after its claim of nearly £40m in savings on net zero were found to be based on hypothetical projects for which there was no documentation.
www.theguardian.com/politics/202...
www.theguardian.com/politics/202...
Reform-run Kent council accused of fabricating £40m net zero savings
Disclosures show figures cited by authority’s leader rested on unfunded ideas listed briefly in budget papers
www.theguardian.com
February 7, 2026 at 11:04 AM
NEW: Reform UK’s flagship council, Kent, has been accused of telling a “blatant lie” after its claim of nearly £40m in savings on net zero were found to be based on hypothetical projects for which there was no documentation.
www.theguardian.com/politics/202...
www.theguardian.com/politics/202...
Reposted by Tim Osborn
The #EarthNegotiationsBulletin has been reporting on @ipbes.net negotiations since the very beginning
Check our archives to see how discussions evolved over time and what the key sticking points were regarding the approval of previous assessments
enb.iisd.org/negotiations...
Check our archives to see how discussions evolved over time and what the key sticking points were regarding the approval of previous assessments
enb.iisd.org/negotiations...
February 7, 2026 at 2:53 PM
The #EarthNegotiationsBulletin has been reporting on @ipbes.net negotiations since the very beginning
Check our archives to see how discussions evolved over time and what the key sticking points were regarding the approval of previous assessments
enb.iisd.org/negotiations...
Check our archives to see how discussions evolved over time and what the key sticking points were regarding the approval of previous assessments
enb.iisd.org/negotiations...
Reposted by Tim Osborn
This thread!
Well, I would criticise Lord Mandelson, but two and a half years ago, a UK government official emailed me to tell me that I can't criticize government officials on social media, for a period going back five years. So. I have to wait a bit.
(You think I'm kidding. The UK government told me that)
(You think I'm kidding. The UK government told me that)
February 4, 2026 at 6:54 PM
This thread!
Reposted by Tim Osborn
There exists a map of the modal filters in the UK and Ireland.
www.lowtrafficneighbourhoods.org/map/modalfil...
www.lowtrafficneighbourhoods.org/map/modalfil...
February 4, 2026 at 12:25 PM
There exists a map of the modal filters in the UK and Ireland.
www.lowtrafficneighbourhoods.org/map/modalfil...
www.lowtrafficneighbourhoods.org/map/modalfil...
Reposted by Tim Osborn
Lead author Dr Sarah Berk, who did the work while a PhD student in @ueaenv.bsky.social, said: “Under climate change, cities face not only the challenge of increasing temperatures in their surrounding areas, but also the challenge of potential changes in their heat islands."
February 4, 2026 at 12:56 PM
Lead author Dr Sarah Berk, who did the work while a PhD student in @ueaenv.bsky.social, said: “Under climate change, cities face not only the challenge of increasing temperatures in their surrounding areas, but also the challenge of potential changes in their heat islands."
Reposted by Tim Osborn
The researchers produced projections for 104 medium-sized cities with populations ranging between 300,000 and one million.
February 4, 2026 at 12:55 PM
The researchers produced projections for 104 medium-sized cities with populations ranging between 300,000 and one million.
Reposted by Tim Osborn
Research led by the University of East Anglia (UEA) shows how many tropical cities are predicted to warm faster than expected under 2°C of global warming.
Read more: https://bit.ly/4khpy9G
#ResearchMatters #Academia #ThisIsUEA
Read more: https://bit.ly/4khpy9G
#ResearchMatters #Academia #ThisIsUEA
February 4, 2026 at 10:45 AM
Research led by the University of East Anglia (UEA) shows how many tropical cities are predicted to warm faster than expected under 2°C of global warming.
Read more: https://bit.ly/4khpy9G
#ResearchMatters #Academia #ThisIsUEA
Read more: https://bit.ly/4khpy9G
#ResearchMatters #Academia #ThisIsUEA
Reposted by Tim Osborn
Rising GHGs create a TOA energy imbalance - less heat escapes to space
Predicted fingerprints: tropospheric warming, stratospheric cooling, ocean heat uptake
Observed reality: 11 warmest years since 1850 are in the last decade
Theory → prediction → observation
theconversation.com/climate-fing...
Predicted fingerprints: tropospheric warming, stratospheric cooling, ocean heat uptake
Observed reality: 11 warmest years since 1850 are in the last decade
Theory → prediction → observation
theconversation.com/climate-fing...
Climate ‘fingerprints’ mark human activity from the top of the atmosphere to the bottom of the ocean
The ocean is warming as the upper atmosphere is cooling – both as a result of excessive greenhouse gas emissions.
theconversation.com
February 4, 2026 at 1:12 PM
Rising GHGs create a TOA energy imbalance - less heat escapes to space
Predicted fingerprints: tropospheric warming, stratospheric cooling, ocean heat uptake
Observed reality: 11 warmest years since 1850 are in the last decade
Theory → prediction → observation
theconversation.com/climate-fing...
Predicted fingerprints: tropospheric warming, stratospheric cooling, ocean heat uptake
Observed reality: 11 warmest years since 1850 are in the last decade
Theory → prediction → observation
theconversation.com/climate-fing...
Reposted by Tim Osborn
Physical Oceanography lectureship being advertised at UEA (note to overseas people that a UK lecturer is broadly equivalent to a US assistant professor).
We are advertising for a Lecturer in Physical Oceanography, closing date 31 March.
If you have research interests in the shelf seas, estuarine and coastal oceans then this could be for you!
And you could do research using UEA's fleet of ocean gliders
vacancies.uea.ac.uk/vacancies/20...
If you have research interests in the shelf seas, estuarine and coastal oceans then this could be for you!
And you could do research using UEA's fleet of ocean gliders
vacancies.uea.ac.uk/vacancies/20...
Lecturer in Physical Oceanography (ATR1734) in University of East Anglia | UEA
View details and apply for this Lecturer in Physical Oceanography (ATR1734) vacancy in University of East Anglia. Faculty of Science
School of Environmental Sciences
Lecturer in Physical Oceano...
vacancies.uea.ac.uk
February 3, 2026 at 3:56 PM
Physical Oceanography lectureship being advertised at UEA (note to overseas people that a UK lecturer is broadly equivalent to a US assistant professor).
Reposted by Tim Osborn
At UEA, the funding will go towards research tackling mental health inequalities, dementia, and improving palliative and end-of-life care, among other things.
February 3, 2026 at 1:05 PM
At UEA, the funding will go towards research tackling mental health inequalities, dementia, and improving palliative and end-of-life care, among other things.
We are advertising for a Lecturer in Physical Oceanography, closing date 31 March.
If you have research interests in the shelf seas, estuarine and coastal oceans then this could be for you!
And you could do research using UEA's fleet of ocean gliders
vacancies.uea.ac.uk/vacancies/20...
If you have research interests in the shelf seas, estuarine and coastal oceans then this could be for you!
And you could do research using UEA's fleet of ocean gliders
vacancies.uea.ac.uk/vacancies/20...
Lecturer in Physical Oceanography (ATR1734) in University of East Anglia | UEA
View details and apply for this Lecturer in Physical Oceanography (ATR1734) vacancy in University of East Anglia. Faculty of Science
School of Environmental Sciences
Lecturer in Physical Oceano...
vacancies.uea.ac.uk
February 3, 2026 at 1:03 PM
We are advertising for a Lecturer in Physical Oceanography, closing date 31 March.
If you have research interests in the shelf seas, estuarine and coastal oceans then this could be for you!
And you could do research using UEA's fleet of ocean gliders
vacancies.uea.ac.uk/vacancies/20...
If you have research interests in the shelf seas, estuarine and coastal oceans then this could be for you!
And you could do research using UEA's fleet of ocean gliders
vacancies.uea.ac.uk/vacancies/20...
Reposted by Tim Osborn
Is climate change responsible for increasingly frequent or severe cold events?
The evidence suggests it is not.
Instead, the impact of climate change is warmer winters and less severe cold events.
@hausfath.bsky.social has a great post on The Climate Brink talking about this.
The evidence suggests it is not.
Instead, the impact of climate change is warmer winters and less severe cold events.
@hausfath.bsky.social has a great post on The Climate Brink talking about this.
Fact check: Climate change is not making extreme cold more common
Sometimes it just gets cold
substack.com
February 2, 2026 at 5:02 PM
Is climate change responsible for increasingly frequent or severe cold events?
The evidence suggests it is not.
Instead, the impact of climate change is warmer winters and less severe cold events.
@hausfath.bsky.social has a great post on The Climate Brink talking about this.
The evidence suggests it is not.
Instead, the impact of climate change is warmer winters and less severe cold events.
@hausfath.bsky.social has a great post on The Climate Brink talking about this.
Reposted by Tim Osborn
Here in the UK January was very cold at the start of the month and then mild and very wet for the rest of it (except in West Scotland). It had average sunshine. Here is a #dataviz of the weather/climate summary for the past year. #globalwarming #climatechange
February 3, 2026 at 7:39 AM
Here in the UK January was very cold at the start of the month and then mild and very wet for the rest of it (except in West Scotland). It had average sunshine. Here is a #dataviz of the weather/climate summary for the past year. #globalwarming #climatechange
Reposted by Tim Osborn
Internal emails show Department of Energy's debunked climate science report was reviewed by scientists internally, who found it "biased," "misleading," and "hypocritical." Contrarian authors tailored their work to ensure it focused on weakening climate regulations. www.eenews.net/articles/doe...
DOE scientists blasted climate report ordered up by boss
Secretary Chris Wright handpicked five climate contrarians to write about global warming. Department experts pushed back on the findings.
www.eenews.net
February 2, 2026 at 4:17 PM
Internal emails show Department of Energy's debunked climate science report was reviewed by scientists internally, who found it "biased," "misleading," and "hypocritical." Contrarian authors tailored their work to ensure it focused on weakening climate regulations. www.eenews.net/articles/doe...