Felix Schaumann
@felixschaumann.bsky.social
Interested in climate change and all the science around it - PhD candidate in climate economics at ETH Zürich. Mainly working with IAMs.
also @felixschaumann@mas.to, @felixschaumann@twitter
also @felixschaumann@mas.to, @felixschaumann@twitter
🌊 Finally, there will be an #EGU26 session about the AMOC!
Specifically, about the impacts of AMOC weakening, very broadly defined - from paleo to the future, form observations to modelling, from physics to economics, ...
Please do submit - Looking forward to a great session 😊
More details 👇
Specifically, about the impacts of AMOC weakening, very broadly defined - from paleo to the future, form observations to modelling, from physics to economics, ...
Please do submit - Looking forward to a great session 😊
More details 👇
Planning to attend #EGU26?
Interested in the impacts of AMOC weakening?
New session alert! 🚨🌊🧪
ITS2.5/CL0.5: "AMOC impacts: physical, biogeochemical, and societal"
Check out our interdisciplinary session description & submit your abstract here: meetingorganizer.copernicus.org/EGU26/sessio...
Interested in the impacts of AMOC weakening?
New session alert! 🚨🌊🧪
ITS2.5/CL0.5: "AMOC impacts: physical, biogeochemical, and societal"
Check out our interdisciplinary session description & submit your abstract here: meetingorganizer.copernicus.org/EGU26/sessio...
January 8, 2026 at 9:16 PM
🌊 Finally, there will be an #EGU26 session about the AMOC!
Specifically, about the impacts of AMOC weakening, very broadly defined - from paleo to the future, form observations to modelling, from physics to economics, ...
Please do submit - Looking forward to a great session 😊
More details 👇
Specifically, about the impacts of AMOC weakening, very broadly defined - from paleo to the future, form observations to modelling, from physics to economics, ...
Please do submit - Looking forward to a great session 😊
More details 👇
Reposted by Felix Schaumann
📣The DFG research training group ECO-N at @unileipzig.bsky.social has just announced 14 new PhD🎓 vacancies within its 2nd cohort, on topics incl clean air💨, climate change🌀, soil biodiv🪱 and forests🌳.
More info on ECO-N: www.eco-n.org
Vacancy announcement: uni-leipzig.b-ite.careers/jobposting/9...
More info on ECO-N: www.eco-n.org
Vacancy announcement: uni-leipzig.b-ite.careers/jobposting/9...
Universität Leipzig: Economics of Connected Natural Commons
The Research Training Group ECO-N trains a new generation of sustainability researchers to develop both an excellent command of quantitative research methods for understanding specific natural or human-made commons and adopt a systemic perspective on connected natural commons.
www.eco-n.org
December 12, 2025 at 11:57 AM
📣The DFG research training group ECO-N at @unileipzig.bsky.social has just announced 14 new PhD🎓 vacancies within its 2nd cohort, on topics incl clean air💨, climate change🌀, soil biodiv🪱 and forests🌳.
More info on ECO-N: www.eco-n.org
Vacancy announcement: uni-leipzig.b-ite.careers/jobposting/9...
More info on ECO-N: www.eco-n.org
Vacancy announcement: uni-leipzig.b-ite.careers/jobposting/9...
Reposted by Felix Schaumann
Planning to attend #EGU26?
Interested in the impacts of AMOC weakening?
New session alert! 🚨🌊🧪
ITS2.5/CL0.5: "AMOC impacts: physical, biogeochemical, and societal"
Check out our interdisciplinary session description & submit your abstract here: meetingorganizer.copernicus.org/EGU26/sessio...
Interested in the impacts of AMOC weakening?
New session alert! 🚨🌊🧪
ITS2.5/CL0.5: "AMOC impacts: physical, biogeochemical, and societal"
Check out our interdisciplinary session description & submit your abstract here: meetingorganizer.copernicus.org/EGU26/sessio...
October 22, 2025 at 9:37 AM
Planning to attend #EGU26?
Interested in the impacts of AMOC weakening?
New session alert! 🚨🌊🧪
ITS2.5/CL0.5: "AMOC impacts: physical, biogeochemical, and societal"
Check out our interdisciplinary session description & submit your abstract here: meetingorganizer.copernicus.org/EGU26/sessio...
Interested in the impacts of AMOC weakening?
New session alert! 🚨🌊🧪
ITS2.5/CL0.5: "AMOC impacts: physical, biogeochemical, and societal"
Check out our interdisciplinary session description & submit your abstract here: meetingorganizer.copernicus.org/EGU26/sessio...
Is "overshoot" replacing "tipping points" in the climate discourse?
I wrote a short blog post exploring this idea.
Bottom line: it's all about urgency and irreversibility, but overshoot can circumvent some problems that the tipping points framing has.
Read the full post here: s.gwdg.de/wRWft8
I wrote a short blog post exploring this idea.
Bottom line: it's all about urgency and irreversibility, but overshoot can circumvent some problems that the tipping points framing has.
Read the full post here: s.gwdg.de/wRWft8
Is Climate Overshoot the New Tipping Points? – Climate Matters
climatematters.blogs.uni-hamburg.de
September 26, 2025 at 7:53 AM
Is "overshoot" replacing "tipping points" in the climate discourse?
I wrote a short blog post exploring this idea.
Bottom line: it's all about urgency and irreversibility, but overshoot can circumvent some problems that the tipping points framing has.
Read the full post here: s.gwdg.de/wRWft8
I wrote a short blog post exploring this idea.
Bottom line: it's all about urgency and irreversibility, but overshoot can circumvent some problems that the tipping points framing has.
Read the full post here: s.gwdg.de/wRWft8
Reposted by Felix Schaumann
🚨 We are hiring! I am looking for a climate scientist postdoc to join my team at Oxford working on a project on climate change and health until Feb 2028. For more details: www.linkedin.com/feed/update/...
📅 Apply by 14 May here: my.corehr.com/pls/uoxrecru...
📅 Apply by 14 May here: my.corehr.com/pls/uoxrecru...
🚨 We are hiring! I am looking for a postdoc to join my team at the… | Rupert Stuart-Smith
🚨 We are hiring! I am looking for a postdoc to join my team at the University of Oxford, working on a Wellcome Trust-funded project on climate change and health. The post will run until February 2028....
www.linkedin.com
April 22, 2025 at 6:37 AM
🚨 We are hiring! I am looking for a climate scientist postdoc to join my team at Oxford working on a project on climate change and health until Feb 2028. For more details: www.linkedin.com/feed/update/...
📅 Apply by 14 May here: my.corehr.com/pls/uoxrecru...
📅 Apply by 14 May here: my.corehr.com/pls/uoxrecru...
Reposted by Felix Schaumann
[Video] AMOC-Schwächung könnte Billionen kosten. Die #AMOC-Abschwächung verringert die #CO₂-Aufnahme, verstärkt die Erderwärmung & erhöht die Kosten - so die neue Studie von @felixschaumann.bsky.social & @edualastrue.bsky.social (MPI für Meteorologie). Carolin Riethmüller fasst für Euch zusammen➡️🔗
Billionen Kosten durch schwächere Meeresströmung | Wissen Was News
YouTube video by MaxPlanckSociety
youtu.be
March 13, 2025 at 4:52 PM
[Video] AMOC-Schwächung könnte Billionen kosten. Die #AMOC-Abschwächung verringert die #CO₂-Aufnahme, verstärkt die Erderwärmung & erhöht die Kosten - so die neue Studie von @felixschaumann.bsky.social & @edualastrue.bsky.social (MPI für Meteorologie). Carolin Riethmüller fasst für Euch zusammen➡️🔗
Reposted by Felix Schaumann
Climate change could weaken the Atlantic Meridional Overturning Circulation (AMOC), which would cool the Northern Hemisphere. A weaker AMOC could also diminish ocean carbon uptake, thus increasing the social cost of carbon. In PNAS: www.pnas.org/doi/10.1073/...
March 3, 2025 at 6:33 PM
Climate change could weaken the Atlantic Meridional Overturning Circulation (AMOC), which would cool the Northern Hemisphere. A weaker AMOC could also diminish ocean carbon uptake, thus increasing the social cost of carbon. In PNAS: www.pnas.org/doi/10.1073/...
Reposted by Felix Schaumann
Economic impact studies tend to find a weaker AMOC globally beneficial, as lower temperatures in the Northern Hemisphere would offset some global warming & associated economic damages - but new paper shows this ignores reduced C uptake by oceans & Social Cost of Carbon. See bsky.app/profile/feli...
💰 Weaker ocean circulation may cost trillions
A new study by @felixschaumann.bsky.social and @edualastrue.bsky.social in @pnas.org reveals that a weakening Atlantic Meridional Overturning Circulation (AMOC) could lead to costs of several trillion euros. #CLICCS #climate #ocean @uni-hamburg.de
A new study by @felixschaumann.bsky.social and @edualastrue.bsky.social in @pnas.org reveals that a weakening Atlantic Meridional Overturning Circulation (AMOC) could lead to costs of several trillion euros. #CLICCS #climate #ocean @uni-hamburg.de
Weaker ocean current could cost trillions
Faculties
buff.ly
March 2, 2025 at 1:18 PM
Economic impact studies tend to find a weaker AMOC globally beneficial, as lower temperatures in the Northern Hemisphere would offset some global warming & associated economic damages - but new paper shows this ignores reduced C uptake by oceans & Social Cost of Carbon. See bsky.app/profile/feli...
Reposted by Felix Schaumann
Der Kollaps einer Meeresströmung könnte Europa extrem kalte Winter wie in Kanada bringen, warnten Forschende zuletzt. Unwahrscheinlich, sagt eine neue Studie. Was stimmt?
AMOC: Eine kleine Wahrscheinlichkeit, dass etwas sehr Schlimmes passiert
Der Kollaps einer Meeresströmung könnte Europa extrem kalte Winter wie in Kanada bringen, warnten Forschende zuletzt. Unwahrscheinlich, sagt eine neue Studie. Was stimmt?
www.zeit.de
February 26, 2025 at 4:10 PM
Der Kollaps einer Meeresströmung könnte Europa extrem kalte Winter wie in Kanada bringen, warnten Forschende zuletzt. Unwahrscheinlich, sagt eine neue Studie. Was stimmt?
Reposted by Felix Schaumann
Check out this great paper by @felixschaumann.bsky.social with @edualastrue.bsky.social out now in @pnas.org that integrates climate science with climate economics to study the social cost of carbon implications of reduced AMOC weakening. Super impressive work for a first PhD chapter👇
🚨 First PhD paper in @pnas.org 🥳
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
doi.org
February 25, 2025 at 9:04 PM
Check out this great paper by @felixschaumann.bsky.social with @edualastrue.bsky.social out now in @pnas.org that integrates climate science with climate economics to study the social cost of carbon implications of reduced AMOC weakening. Super impressive work for a first PhD chapter👇
Reposted by Felix Schaumann
💰 Weaker ocean circulation may cost trillions
A new study by @felixschaumann.bsky.social and @edualastrue.bsky.social in @pnas.org reveals that a weakening Atlantic Meridional Overturning Circulation (AMOC) could lead to costs of several trillion euros. #CLICCS #climate #ocean @uni-hamburg.de
A new study by @felixschaumann.bsky.social and @edualastrue.bsky.social in @pnas.org reveals that a weakening Atlantic Meridional Overturning Circulation (AMOC) could lead to costs of several trillion euros. #CLICCS #climate #ocean @uni-hamburg.de
Weaker ocean current could cost trillions
Faculties
buff.ly
February 25, 2025 at 5:03 PM
💰 Weaker ocean circulation may cost trillions
A new study by @felixschaumann.bsky.social and @edualastrue.bsky.social in @pnas.org reveals that a weakening Atlantic Meridional Overturning Circulation (AMOC) could lead to costs of several trillion euros. #CLICCS #climate #ocean @uni-hamburg.de
A new study by @felixschaumann.bsky.social and @edualastrue.bsky.social in @pnas.org reveals that a weakening Atlantic Meridional Overturning Circulation (AMOC) could lead to costs of several trillion euros. #CLICCS #climate #ocean @uni-hamburg.de
Reposted by Felix Schaumann
No cheers for warming slowdown from potential weakening of AMOC given carbon drawdown impact. New study.
February 25, 2025 at 12:28 PM
No cheers for warming slowdown from potential weakening of AMOC given carbon drawdown impact. New study.
Reposted by Felix Schaumann
Die Abschwächung der #AMOC bietet neben den bereits oft prognostizierten Abkühlungseffekten für Nordeuropa weitere spannende Skills: Sie wird wohl auch die CO2-Aufnahmekapazität des Nordatlantiks verringern.
#Klimakrise #Nordatlantik #Ozean #Ozeanographie
#Klimakrise #Nordatlantik #Ozean #Ozeanographie
🚨 First PhD paper in @pnas.org 🥳
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
doi.org
February 25, 2025 at 12:22 PM
Die Abschwächung der #AMOC bietet neben den bereits oft prognostizierten Abkühlungseffekten für Nordeuropa weitere spannende Skills: Sie wird wohl auch die CO2-Aufnahmekapazität des Nordatlantiks verringern.
#Klimakrise #Nordatlantik #Ozean #Ozeanographie
#Klimakrise #Nordatlantik #Ozean #Ozeanographie
🚨 First PhD paper in @pnas.org 🥳
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
doi.org
February 25, 2025 at 8:36 AM
🚨 First PhD paper in @pnas.org 🥳
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
🌊 @edualastrue.bsky.social and I looked at how much less CO2 will be taken up by the ocean if the #AMOC weakens - and how this reduced ocean carbon uptake affects the social cost of CO2 emissions.
📝 Read the paper here: doi.org/10.1073/pnas...
🧵 A thread [1/11]
Reposted by Felix Schaumann
Excited to announce a new @pnas.org publication on the Social Cost of Carbon. We integrate evidence from the literature and expert survey to provide an SCC distribution inclusive of both parametric and structural uncertainties. Our mean 2020 value is $283 per ton CO2
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Synthesis of evidence yields high social cost of carbon due to structural model variation and uncertainties | PNAS
Estimating the cost to society from a ton of CO2—termed the social cost of carbon
(SCC)—requires connecting a model of the climate system with a re...
www.pnas.org
December 17, 2024 at 9:42 PM
Excited to announce a new @pnas.org publication on the Social Cost of Carbon. We integrate evidence from the literature and expert survey to provide an SCC distribution inclusive of both parametric and structural uncertainties. Our mean 2020 value is $283 per ton CO2
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Reposted by Felix Schaumann
In a new interdisciplinary Nature Climate Change Perspective paper, led by me, @lisgilmore and Rachael Shwom, we offer a critical perspective on #climate and social “tipping points.” 🎁: rdcu.be/d2gBC 🧵
‘Tipping points’ confuse and can distract from urgent climate action
Nature Climate Change - The tipping points framing is widely used in climate discussions but receives mixed feedback. This Perspective critiques it for oversimplifying the complexities of natural...
rdcu.be
December 3, 2024 at 3:59 PM
In a new interdisciplinary Nature Climate Change Perspective paper, led by me, @lisgilmore and Rachael Shwom, we offer a critical perspective on #climate and social “tipping points.” 🎁: rdcu.be/d2gBC 🧵
Reposted by Felix Schaumann
The model calibration paper for fair is now published in Geoscientific Model Development! 🎉
TLDR: how do we constrain a highly parameterised model to observational and assessed constrained ranges, with uncertainty?
gmd.copernicus.org/articles/17/...
TLDR: how do we constrain a highly parameterised model to observational and assessed constrained ranges, with uncertainty?
gmd.copernicus.org/articles/17/...
fair-calibrate v1.4.1: calibration, constraining, and validation of the FaIR simple climate model for reliable future climate projections
Abstract. Simple climate models (also known as emulators) have re-emerged as critical tools for the analysis of climate policy. Emulators are efficient and highly parameterised, where the parameters a...
gmd.copernicus.org
December 3, 2024 at 8:15 AM
The model calibration paper for fair is now published in Geoscientific Model Development! 🎉
TLDR: how do we constrain a highly parameterised model to observational and assessed constrained ranges, with uncertainty?
gmd.copernicus.org/articles/17/...
TLDR: how do we constrain a highly parameterised model to observational and assessed constrained ranges, with uncertainty?
gmd.copernicus.org/articles/17/...
Reposted by Felix Schaumann
There are so many cool starter packs around here 💙 But I have not seen yet any specifically on the AMOC, so I decided to create one now 🌊 Let me know if you want to be included too!
#AMOC #Atlantic #OceanCirculation
go.bsky.app/JxFDh6b
#AMOC #Atlantic #OceanCirculation
go.bsky.app/JxFDh6b
November 26, 2024 at 5:18 AM
There are so many cool starter packs around here 💙 But I have not seen yet any specifically on the AMOC, so I decided to create one now 🌊 Let me know if you want to be included too!
#AMOC #Atlantic #OceanCirculation
go.bsky.app/JxFDh6b
#AMOC #Atlantic #OceanCirculation
go.bsky.app/JxFDh6b
Reposted by Felix Schaumann
Softening the definition of Net Zero won’t stop global warming. As authors of the 2009 “Net Zero Papers” we call on countries and companies to recognise the need for Geological Net Zero, balancing flows of carbon into and out of the Earth’s crust.
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Countries could use nature to ‘cheat’ on net zero targets, scientists warn
By relying on natural carbon sinks such as forests and peatlands to offset emissions, governments can appear closer to goals than they actually are
www.theguardian.com
November 18, 2024 at 6:46 PM
Softening the definition of Net Zero won’t stop global warming. As authors of the 2009 “Net Zero Papers” we call on countries and companies to recognise the need for Geological Net Zero, balancing flows of carbon into and out of the Earth’s crust.
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Reposted by Felix Schaumann
August 19, 2024 at 8:21 PM
Reposted by Felix Schaumann
#AcademicSky
Maybe dealing with GPTs hallucinating papers should give us a reason to update our 20th century approaches to article referencing. Can't we just use the DOI when writing papers and stop pretending that anybody is going to go to a physical library to find a specific journal volume?
Maybe dealing with GPTs hallucinating papers should give us a reason to update our 20th century approaches to article referencing. Can't we just use the DOI when writing papers and stop pretending that anybody is going to go to a physical library to find a specific journal volume?
I feel like this is another good argument for a better approach to referencing in articles. If the DOI was used throughout, rather than journals still insisting on increasingly irrelevant volume/issue references - we could potentially sidestep this issue of GPTs bullshitting nonexistent papers.
August 19, 2024 at 12:16 PM
#AcademicSky
Maybe dealing with GPTs hallucinating papers should give us a reason to update our 20th century approaches to article referencing. Can't we just use the DOI when writing papers and stop pretending that anybody is going to go to a physical library to find a specific journal volume?
Maybe dealing with GPTs hallucinating papers should give us a reason to update our 20th century approaches to article referencing. Can't we just use the DOI when writing papers and stop pretending that anybody is going to go to a physical library to find a specific journal volume?
Reposted by Felix Schaumann
New article published today at Science Policy Forum, joint with co-authors Lisa Rennels, Frank Errickson, and David Anthoff
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Equity weighting increases the social cost of carbon
New government guidelines could transform benefit-cost analysis of US climate policy
www.science.org
August 15, 2024 at 6:11 PM
New article published today at Science Policy Forum, joint with co-authors Lisa Rennels, Frank Errickson, and David Anthoff
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Reposted by Felix Schaumann
Starting 250 years ago, we began putting lots of carbon that was buried underground for millions of years into the atmosphere. All in all we’ve emitted nearly 2 trillion tons of CO2 from fossil fuels, which is more than the total mass of the biosphere or all human structures:
August 14, 2024 at 10:24 PM
Starting 250 years ago, we began putting lots of carbon that was buried underground for millions of years into the atmosphere. All in all we’ve emitted nearly 2 trillion tons of CO2 from fossil fuels, which is more than the total mass of the biosphere or all human structures:
Reposted by Felix Schaumann
On The Climate Brink, I explain the problems with this graphic.
In fact, climate models do an excellent job simulating the climate.
www.theclimatebrink....
In fact, climate models do an excellent job simulating the climate.
www.theclimatebrink....
August 12, 2024 at 2:41 PM
On The Climate Brink, I explain the problems with this graphic.
In fact, climate models do an excellent job simulating the climate.
www.theclimatebrink....
In fact, climate models do an excellent job simulating the climate.
www.theclimatebrink....
Interested in economic effects of AMOC weakening? Join us tomorrow afternoon in #EGU24 session CL3.2.3 to hear about how the AMOC affects the carbon cycle and through that the social cost of carbon!
Also if you just want to hang out and talk climate economics, anytime! :)
Also if you just want to hang out and talk climate economics, anytime! :)
April 14, 2024 at 9:43 PM
Interested in economic effects of AMOC weakening? Join us tomorrow afternoon in #EGU24 session CL3.2.3 to hear about how the AMOC affects the carbon cycle and through that the social cost of carbon!
Also if you just want to hang out and talk climate economics, anytime! :)
Also if you just want to hang out and talk climate economics, anytime! :)