Tim Osborn
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timosbornclim.bsky.social
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
Some people are mis-using IPCC Table 12.12 to falsely claim that the latest IPCC assessment is that most types of extreme weather have not increased. Thread to explain why they're wrong.
Reposted by Tim Osborn
I presented our latest research on groundwater recharge yesterday to the NSW government water planners for groundwater and coastal syatems. And then led tours to show the team our recharge monitoring sites at Harrie Wood Cave, Yarrangobilly.
November 25, 2025 at 7:05 PM
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...
November 25, 2025 at 6:31 PM
Reposted by Tim Osborn
🔴BBC Apologises for Failing to Challenge ‘Dark Money’ Climate-Denial Lobbyist

EXCLUSIVE: BBC faces fresh allegations of bias after corporation admits interview with ‘Net Zero Watch’ lobbying chief Andrew Montford ‘fell below usual standards’

bylinetimes.com/2025/11/25/b...
BBC Apologises for Failing to Challenge 'Dark Money' Climate-Denial Lobbyist
EXCLUSIVE: BBC faces fresh allegations of bias after corporation admits interview with ‘Net Zero Watch’ lobbying chief Andrew Montford 'fell below usual standards'
bylinetimes.com
November 25, 2025 at 4:52 PM
Reposted by Tim Osborn
This story should be covered waaaaayy more than it is.

The US has sanctioned six judges if the international criminal court ICC, because Trump didn’t like them issuing arrest warrants for Benjamin Netanyahu and former Minister of Defense Yoav Gallant.

www.lemonde.fr/en/internati...
Nicolas Guillou, French ICC judge sanctioned by the US: 'You are effectively blacklisted by much of the world's banking system'
Six judges and three prosecutors at the International Criminal Court have been sanctioned by the Trump administration. In an interview with Le Monde, Guillou discusses the impact of these measures on ...
www.lemonde.fr
November 24, 2025 at 8:13 PM
Reposted by Tim Osborn
🔴⚠️🌋🇪🇹After more than 10000 years,the 1st historical #eruption of #HayliGubbi #volcano has occurred in E. #Ethiopia, producing an eruptive column that reached more than 18km of height on Nov.23.⬇️Meteosat12 animation of RGB Ash product of the huge gas & ash plume moving eastward.
November 24, 2025 at 7:50 PM
Reposted by Tim Osborn
Two years ago we got together in a beautiful mountain to learn and develop #rstats packages for ecology

After {labeleR} (ecologyr.github.io/labeleR/) and {BlueCarbon} (ecologyr.github.io/BlueCarbon/), {mappestRisk} is now officially out! See thread by lead author @dario-ssm.bsky.social 👇
November 20, 2025 at 7:17 PM
Reposted by Tim Osborn
In a 2024 paper criticizing the 'billion-dollar-disasters' database, Roger Pielke Jr. published analysis that is best described as a Russian-doll of errors.

Here's my in-depth take down of his appallingly bad work.

economicsfromthetopdown.com/2025/10/26/r...
Roger Pielke Jr.’s Appallingly Bad Analysis of Billion Dollar Disasters – Economics from the Top Down
In a recent paper called Scientific integrity and U.S. “Billion Dollar Disasters”, Roger Pielke Jr. published a chart that's so bad I've devoted a whole essay to debunking it.
economicsfromthetopdown.com
October 26, 2025 at 3:24 PM
Reposted by Tim Osborn
For a review of the multiple factors forcing drought in the region:

Barlow, M., B. Zaitchik, S. Paz, E. Black, J. Evans, and A. Hoell, 2016: A Review of Drought in the Middle East and Southwest Asia. J. Climate, 29, 8547–8574, doi.org/10.1175/JCLI....

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November 24, 2025 at 2:59 PM
Reposted by Tim Osborn
The ocean has a strong influence on precipitation in Southwest Asia. The historical patterns of warm and cold that suppress rain in Tehran are shown on the left. The current pattern is shown on the right, aligning closely for maximum forcing of drought.

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November 24, 2025 at 2:59 PM
Reposted by Tim Osborn
Tehran is having an historic drought due to a combination of factors, including climate change.

The ocean is not helping.

1/3
November 24, 2025 at 2:59 PM
Reposted by Tim Osborn
Most people hear “heat pump” and think of small air-source units at home. But Germany is building one of the world’s largest heat pumps in Mannheim: a 162 MW river-source system using heat from the Rhine.

Big reminder that heat-pumps scale far beyond households — they can decarbonise whole cities.
November 24, 2025 at 8:28 AM
Reposted by Tim Osborn
Now that we are likely to cross 1.5°C, there is increasing discussion on "overshoot".

There is a lot of uncertainties on overshoot, but there is one thing that we are 100% sure about:

GHG emissions need to go down >90% in decades for overshoot to be a reality.

www.swp-berlin.org/publikation/...
November 24, 2025 at 8:13 AM
So famous they named a road after him @micefearboggis.bsky.social
November 23, 2025 at 8:37 PM
Reposted by Tim Osborn
Read this interview with @peterthorne.bsky.social to understand how dire the situation is with respect to US science funding. The US has played an outsized role in Earth observations and global coordination, and even if other nations decide to step in, it would take at least a decade to recover.
Without US satellites, 'we go dark', climate monitor tells AFP
US budget cuts risk creating blind spots in Earth monitoring systems that would imperil weather forecasting and climate research for years to come, the deputy chair of a key UN-backed climate monitori...
www.france24.com
November 19, 2025 at 11:43 AM
Reposted by Tim Osborn
The notion that someone who is in their 20's can't have experienced climate change (supposedly due to an IPCC definition) is utter crap. It's embarrassing for a supposedly serious academic to be so disingenuous.
November 15, 2025 at 5:33 PM
Reposted by Tim Osborn
How much carbon budget do we have left if we want to stay below 1.5˚C?

Just 2 more years at current rates. It is essentially impossible to avoid global temperature rise exceeding 1.5˚C.

climatelabbook.substack.com/p/the-shrink...
November 13, 2025 at 1:19 PM
Reposted by Tim Osborn
1/2

To support this year's Global Carbon Budget, 2025, we are publishing

The big paper, made possible by the strong commitment of a core group of scientists, with @pfriedling.bsky.social at the lead, working with a network of equally committed contributors from 102 research organizations worldwide
November 13, 2025 at 1:09 AM
Reposted by Tim Osborn
Published today in Earth System Science Data: The Global Carbon Budget 2025
essd.copernicus.org/preprints/es...
Global Carbon Budget 2025
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere in a changing climate is critical to bette...
essd.copernicus.org
November 13, 2025 at 3:07 PM
Please pass this on to any potential PhD applicants. Thanks.

The closing date for applications is 10 December.
November 13, 2025 at 12:45 PM
Reposted by Tim Osborn
Looking for a PhD in climate science?

Great opportunity to help modernise one of the iconic climate time series - Central England Temperature.

Led by @timosbornclim.bsky.social, with myself and Met Office collaborators: www.uea.ac.uk/course/phd-d...
PhD Redeveloping Central England Temperature: Modernising a Historic Climate Series, CASE project with Met Office (OSBORNT_U26SCI) 2026/27 | UEA
PhD Redeveloping Central England Temperature: Modernising a Historic Climate Series, CASE project with Met Office (OSBORNT_U26SCI) 2026/27 | UEA
www.uea.ac.uk
November 12, 2025 at 5:38 PM
Reposted by Tim Osborn
We are looking for a PhD student to join an exciting project focused on ice-penetrating radar geophysics to investigate ice-flow patterns in West Antarctica. The project will be led by TJ Young as part of an interdisciplinary supervisory team.

iapetus.ac.uk/studentships...
How does ice flow enhancement and rearrangement impact the West Antarctic Ice Sheet?
iapetus.ac.uk
November 11, 2025 at 2:16 PM
Reposted by Tim Osborn
Fully funded PhD projects available in my group (Please share with interested parties, details here: www.thefosterlab.org/blog/2025/11...):
PhD Topics - Entry September 2026 — The Foster Lab
This year we are involved in 3 fully funded PhD projects via IGNITE our NERC DLA. The deadline is Thursday Jan 8th 2026 .  1.      Is the world already 1.5 C warmer?...
www.thefosterlab.org
November 11, 2025 at 1:46 PM
Reposted by Tim Osborn
Crisis in Iran as reservoirs supplying Mashhad, the second-largest city with 4 million people, fall below 3%

Authorities warn of an unprecedented drought emergency

www.theguardian.com/world/2025/n...
Water levels below 3% in dam reservoirs for Iran’s second city, say reports
Storage dwindles in Mashhad, home to 4 million people, as country struggles with drought
www.theguardian.com
November 9, 2025 at 5:46 PM