Timo Kelder
@timokelder.bsky.social
270 followers 340 following 9 posts
Researcher @CAS_climate | PhD @lborogeog | climate extremes #UNSEEN | Caribbean climate resilience #hometown | Views my own
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Reposted by Timo Kelder
erichfischer.bsky.social
Can climate models reproduce observed trends?

The answer can be challenging. Our new review paper in Science Advances led by Isla Simpson and Tiffany Shaw @drshaw.bsky.social discusses challenges and ways forward in confronting climate models and observations.

www.science.org/doi/10.1126/...
timokelder.bsky.social
We made a short video on our paper 'how to stop being surprised by unprecedented weather' 👇
stichtingcas.bsky.social
Our new Nature Communications paper, led by Timo Kelder with coauthor Lisette Klok and an incredible team, explores how we can anticipate extreme weather before disaster strikes and build resilience to its impacts.

📽️ Watch this short video to learn more! 👇@naturecomms.bsky.social
Reposted by Timo Kelder
erthsarah.bsky.social
For folks working with communities on climate action there is some excellent framing. Paying attention to stories helps process the new extreme/ reality & need for transformation. A story that resonated with me this year was ice rinks going out of business. We must respond.
timokelder.bsky.social
1/ How to Stop Being Surprised by Unprecedented Weather

Our new @naturecomms.bsky.social paper provides our multi-author perspective on methods to anticipate extreme weather and reduce impacts, shifting from reacting with surprise towards resilience.

🔗 Read it here: doi.org/10.1038/s414...

🧵⬇️
A GIF of the perspective piece
Reposted by Timo Kelder
edhawkins.org
What do we do with this information?

More transformative adaptation in advance to ensure greater resilience means less reactive adaptation required when the unprecedented event occurs.
The conceptual adaptation pyramid illustrates how three layers of adaptation contribute to resilience to unprecedented weather. (a) An unstable pyramid: with little transformative actions, we increase our reliance on incremental adaptation and place a lot of emphasis on handling unprecedented weather through early warning, early action and disaster response. (b) A stable pyramid: with more emphasis on transformative actions, we may be able to prevent limits to incremental adaptation, and have to place less emphasis on reactive actions.
Reposted by Timo Kelder
vikkithompson.bsky.social
Enjoyed being involved in this new perspective led by @timokelder.bsky.social, where we show the value of using multiple lines of evidence to assess plausible yet unprecedented extreme events that we need to be preparing for 🌍🌧️🌀🌡️
timokelder.bsky.social
1/ How to Stop Being Surprised by Unprecedented Weather

Our new @naturecomms.bsky.social paper provides our multi-author perspective on methods to anticipate extreme weather and reduce impacts, shifting from reacting with surprise towards resilience.

🔗 Read it here: doi.org/10.1038/s414...

🧵⬇️
A GIF of the perspective piece
Reposted by Timo Kelder
valmasdel.bsky.social
How to stop being surprised by unprecedented weather?

Transformative adaptation, foundation for long-term resilience, supported by incremental adaptation through upgrading existing infrastructure, and reactive adaptation - early action and disaster response.

www.nature.com/articles/s41...
How to stop being surprised by unprecedented weather
Nature Communications - Unprecedented weather events are increasingly impacting societies worldwide. This Perspective explores methods to anticipate such hazards, and it highlights the role of...
www.nature.com
Reposted by Timo Kelder
Reposted by Timo Kelder
lisaschipper.bsky.social
How can we stop being surprised by unprecedented weather? Led by @timokelder.bsky.social (+many other colleagues) look at this in a new OA paper in @naturecomms.bsky.social. In particular, we discuss methods for that help anticipate unprecedented weather hazards. www.nature.com/articles/s41...
Screenshot of the webpage for the new paper 'How to stop being surprised by unprecedented weather' out in Nature Communications at https://www.nature.com/articles/s41467-025-57450-0. The authors are Timo Kelder, Dorothy Heinrich, Lisette Klok, Vikki Thompson, Henrique M. D. Goulart, Ed Hawkins, Louise J. Slater, Laura Suarez-Gutierrez, Robert L. Wilby, Erin Coughlan de Perez, Elisabeth M. Stephens, Stephen Burt, Bart van den Hurk, Hylke de Vries, Karin van der Wiel, E. Lisa F. Schipper, Antonio Carmona Baéz, Ellen van Bueren & Erich M. Fischer
Reposted by Timo Kelder
erichfischer.bsky.social
We have seen many record-shattering and unprecedented weather extremes in recent years. In the paper led by @timokelder.bsky.social we review methods on how to stop being surprised by the next one.
Reposted by Timo Kelder
karinvdwiel.bsky.social
Excited to have been part of this perspective, led by @timokelder.bsky.social, discussing how society can build resilience to, rather than be surprised by, unprecedented weather: 💪 vs 😱

Includes a review of methods to anticipate events, and discussion on adaptation practice and disaster management.
timokelder.bsky.social
7/ Scientific advances improve our ability to anticipate extreme weather, but knowledge alone is not enough.

🌍 Interdisciplinary collaboration is essential—climate science, engineering & social sciences must work together.

🙏 Grateful to my brilliant co-authors for their collaboration on this work!
timokelder.bsky.social
6/ One example:

🏝️ Sint Maarten restored power quickly after Maria with underground cables (incremental adaptation), yet informal settlements remained vulnerable, showing need for transformative change.

⚡ Puerto Rico, lacking such upgrades, faced prolonged outages from decades of underinvestment.
timokelder.bsky.social
5/ Adaptation requires a multi-layered approach. We follow the conceptual Adaptation Pyramid:

🟥 Reactive adaptation
🟧 Incremental adaptation
🟩 Transformative adaptation

A balanced strategy is essential for reducing future surprises.

⬇️
Figure 3 in the paper showing three layers of adaptation as a pyrimad
timokelder.bsky.social
4/ We can be surprised by unprecedented weather, or by its impacts.

❗ Some events are truly new—record heat, unexpected floods.
❗ Others aren’t new, but their impacts catch us off guard—because risks were underestimated, systems were unprepared.

We need better tools for both.

⬇️
timokelder.bsky.social
3/ Our research reviews key methods to anticipate unprecedented weather, including:

📊 Conventional statistical methods
📜 Historical observations & oral history
📖 Event-based storylines
🌍 Weather & climate models

Each provides a different piece of the puzzle.
Figure 1 of the paper showing the complementary lines of evidence to identify unprecedented weather
timokelder.bsky.social
2/ From record-breaking heatwaves to out-of-season floods, disasters are catching us off guard.

🌪️🌊 In 2017, Hurricanes Irma & Maria devastated the Caribbean, causing 4600+ deaths in Puerto Rico alone. Could we have foreseen & mitigated such impacts? 🤔

⬇️
timokelder.bsky.social
1/ How to Stop Being Surprised by Unprecedented Weather

Our new @naturecomms.bsky.social paper provides our multi-author perspective on methods to anticipate extreme weather and reduce impacts, shifting from reacting with surprise towards resilience.

🔗 Read it here: doi.org/10.1038/s414...

🧵⬇️
A GIF of the perspective piece
Reposted by Timo Kelder
lisaschipper.bsky.social
Just for the record, a complete 🧵 of my 🧵 on adaptation.
bsky.app/profile/lisa...

Part I
lisaschipper.bsky.social
Since COP29 is turning into an adaptation COP, I am bringing some of my past threads on adaptation from another place here.

PART I: A 🧵 on adaptation and development over the years, digging deep back to the 1990s through to current scholarship.
Reposted by Timo Kelder
erichfischer.bsky.social
#EGU24 High-impact climate events
After a year of countless record-breaking extremes, we organize (again) an #EGU24 session on understanding and quantifying such high-impact climate events and developing storylines for them!

Submit your abstract here:
meetingorganizer.copernicus.org/EGU24/sessio...