Wim Thiery
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wimthiery.bsky.social
Wim Thiery
@wimthiery.bsky.social

Climate scientist modelling extreme events in a changing climate, Associate Professor @vubrussel.bsky.social. Previously research fellow @kuleuvenuniversity.bsky.social and @ethz.ch. Website: https://sites.google.com/site/wimthiery/ .. more

Environmental science 62%
Geography 18%
Pinned
Will you live an unprecedented life?

In our new paper in @nature.com and accompanying @savethechildren.org report, we detect who will face unprecedented lifetime exposure to climate extremes (🧵) 1/n
Report: resourcecentre.savethechildren.net/document/bor...
Paper: www.nature.com/articles/s41...
Born into the Climate Crisis 2. An unprecedented life: Protecting children’s rights in a changing climate | Save the Children’s Resource Centre
The climate crisis is not a distant threat; it is a pressing reality that children are facing today. Despite having contributed the least to the climate crisis, the inherent intergenerational injustic...
resourcecentre.savethechildren.net

Reposted by Wim Thiery

2025 was 𝗕𝗲𝗹𝗴𝗶𝘂𝗺'𝘀 𝗱𝗿𝗶𝗲𝘀𝘁 𝘆𝗲𝗮𝗿 𝘀𝗶𝗻𝗰𝗲 𝟭𝟵𝟳𝟲. With 620.9 mm of rain, it follows a record-wet 2024. It is also the 4𝐭𝐡 𝘄𝗮𝗿𝗺𝗲𝘀𝘁 𝘆𝗲𝗮𝗿, featuring the 𝗲𝗮𝗿𝗹𝗶𝗲𝘀𝘁 𝘀𝘂𝗺𝗺𝗲𝗿 𝗱𝗮𝘆 on record (12 Apr.). #Belgium #Climate #Weather | @meteobe.bsky.social
FR: www.meteo.be/fr/infos/act...
NL: www.meteo.be/nl/info/nieu...
Awesome turnout in support of @ncar-ucar.bsky.social at #AGU25. Take a look at how many people use our products!
Here's our reporting on the proposed dismantling of the jewel of US atmospheric science, @ncar-ucar.bsky.social.

The plan is to break NCAR apart and disburse some parts to other locations (like the research aircraft fleet) and eliminate others.

www.nature.com/articles/d41...

🧪 #AGU25 #climate
Trump team plans to break up ‘global mothership’ of climate science
Much of the National Center for Atmospheric Research’s non-climate portfolio will be dispersed, the White House says.
www.nature.com
Threatening to dismantle NCAR, our premier weather and climate research institute (apparently) because Colorado refuses to pardon someone accused of tampering with voting machines is a sad example of our current kakistocracy in action… www.nytimes.com/2025...
I know many of you who follow me don't work in climate science, but this is the biggest story in climate right now. Breaking up NCAR makes us all less safe and is another act of self-harm that will take decades to recover from.
Trump administration to dismantle key climate research center
Russell Vought, who directs the White House Office of Management and Budget, announced plans to split up the National Center for Atmospheric Research in Boulder, Colorado, citing concerns about “clima...
wapo.st
Eos @eos.org · 8d
Efforts to dissolve the @ncar-ucar.bsky.social, including closing the center’s headquarters in Boulder, will begin immediately, an official told @usatoday.com 🧪

eos.org/research-and...
Trump Administration Plans to Break Up NCAR - Eos
The Trump administration is planning to dismantle the National Center for Atmospheric Research, one of the world’s leading climate and Earth science research laboratories, according to a statement fro...
eos.org
I came to the US over 10 years ago for a postdoc at NCAR. It changed my life and supercharged my ability to do science. NCAR's unique community nature makes it a global node in atmospheric and climate research. It's really not possible to overstate its value for science and society.
NCAR is a unique & valuable asset - far more than a climate model, or observations, or technology, or training ground, or gathering space. It covers weather, space weather, data, climate, paleo-climate, and everything in-between. It's building is an icon, but it's iconic status goes far beyond that.
The beautiful idea of NCAR, to improve understanding of our planet through a cooperative, shared and open intellectual team effort, is literally what has got me out of bed every morning for nearly two decades. This cannot, CANNOT be allowed to happen.

eu.usatoday.com/story/news/p...
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
eu.usatoday.com

Reposted by Wim Thiery

In an internal email to NSF NCAR employees, UCAR President Antonio (Tony) Busalacchi told staff:

“This story is the first we have heard of any plan to target NSF NCAR, and we have already reached out to NSF to get more information.”

UCAR released a media statement regarding the USA Today report:
UCAR statement on reports that NSF NCAR could be dismantled | NCAR & UCAR News
news.ucar.edu
NCAR is quite literally our global mothership.

Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources.

Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet.

Unbelievable.
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
www.usatoday.com
Unbelievable. This would be a terrible blow to American science, writ large. It would decimate not only climate research, but also the kind of weather, wildfire, and disaster research that has underpinned half a century of progress in prediction, early warning, and increased resilience.
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
bit.ly
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
bit.ly

"In regions dominated by small and rapidly responding glaciers, such as [...] the European Alps, over 50% of the glaciers are projected to disappear within the next two decades." New @natclimate.nature.com study by @landervt.bsky.social @harryzeko.bsky.social @hydr-vub.bsky.social

Reposted by Wim Thiery

Research involving Vrije Universiteit Brussel reveals peak glacier extinction will hit mid-century. Up to 4,000 glaciers could vanish annually. That equals the entire European Alps population. Limiting warming to +1.5°C halves this loss. #ClimateChange #Glaciers
🔗 doi.org/10.1038/s415...
Glaciers set to reach peak rate of extinction in the Alps in eight years

- #climatecrisis forecast to wipe out thousands of glaciers a year globally, threatening water supplies and cultural heritage

Research by @landervt.bsky.social et el
Story by me
www.theguardian.com/environment/...
Glaciers to reach peak rate of extinction in the Alps in eight years
Climate crisis forecast to wipe out thousands of glaciers a year globally, threatening water supplies and cultural heritage
www.theguardian.com
As we move into the final days of the year, 2025 has just overtaken 2022 as warmest year-to-date for Central England.

Given the forecast, it looks likely that 2025 will end up being the warmest calendar year for this region since records began in 1659.

The top 3 warmest will be 2022, 2023 & 2025.

It appears that the U.S. Environmental Protection Agency (EPA) has, within the past week, scrubbed a large amount of climate change content from its official website, as well as *removed human-caused warming* from the discussion on its "causes of climate change" page.
Exciting jobs & PhD studentship!

1) postdoc in historical windstorms: jobs.reading.ac.uk/Job/JobDetai...

2) postdoc in extreme event storylines: jobs.reading.ac.uk/Job/JobDetai...

3) PhD in redeveloping the Central England Temperature series (led by Tim Osborn): www.findaphd.com/phds/project...

With its low computational cost and calibration accuracy, our emulator offers an efficient tool for exploring AMOC dynamics in future climatic scenarios. Finally, the methods used to develop this emulator are generalizable, providing a framework for studying other tipping elements in research

In our new study led by @amaurylaridon.bsky.social in #ORE, we present a nonlinear two-forcing emulator for the #AMOC. By accounting for Greenland Ice Sheet melt, it captures 3 additional collapse trajectories for scenarios SSP3-7.0 to SSP5-8.5. open-research-europe.ec.europa.eu/articles/5-87

With invited speakers Axel Kleidon and @anabastos.bsky.social

📅 Official abstract submission deadline is 15 January 2026, 13:00 CET

Convened by Ryan Teuling, @innevanderkelen.bsky.social, Diego Miralles, and @soniaseneviratne.bsky.social and myself
📢 Working on land atmosphere-interactions and their role in shaping climate extremes?

🌍 Consider submitting an abstract to our European Geosciences Union (@egu.eu) 2026 session:

Land-atmosphere interactions and climate extremes (CL4.4): meetingorganizer.copernicus.org/EGU26/sessio...
Today, DOE renamed the National Renewable Energy Laboratory (NREL), one of the crown jewels of U.S. science and engineering for renewable energy, the National Laboratory of the Rockies (NLR). We should be reinvesting in our world-leading national labs not renaming them. www.nrel.gov/news/detail/...
News Release: Energy Department Renames NREL 'National Lab of the Rockies' | NREL
www.nrel.gov
I really wish we'd stop calling them climate "skeptics" or "vaccine skeptics", if you jump off a cliff we don't call you a "gravity skeptic"
New text @cop30brazil.bsky.social provides a glimpse of where #COP30 might land.

Some reflections on references to science and evidence. /1

unfccc.int/sites/defaul...
unfccc.int
📢 New paper on the impacts of AMOC collapse on European hydroclimate. 🌊

We find an AMOC collapse would exacerbate drought conditions across Europe, linked to reduced precipitation. In combination with climate change droughts are expected to become more frequent and severe.

doi.org/10.5194/hess...
Changing European hydroclimate under a collapsed AMOC in the Community Earth System Model
Abstract. The Atlantic Meridional Overturning Circulation (AMOC) is expected to weaken or even collapse under anthropogenic climate change. Given the importance of the AMOC in the present-day climate,...
doi.org