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Konstantin Weber

@konstantinweber.bsky.social
428 followers 251 following 57 posts

PhD in Climate Science @ethzurich.bsky.social | 🌍 Understanding what's going on and what to do about it | 🏔 Mountain lover | Opinions = my own | ❤️ or 🔄 ≠ endorsement Also here: www.linkedin.com/in/konstantin-weber

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Reposted by Konstantin Weber
The New York Times @nytimes.com · 14/09/2026
Breaking News: The E.P.A. is said to be planning to announce that the U.S. will no longer limit climate pollution from power plants.
nyti.ms
E.P.A. Will Erase Limits on Climate Pollution From Power Plants
Generation of electricity is the second largest source of carbon dioxide and other planet-warming gases in the United States.
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David Ho @davidho.bsky.social · 12/09/2026
Treating this as an unstoppable race, and accepting the "endgame" of runaway warming, is a reckless gamble that should never be decided in a boardroom alone. Betting on future carbon removal to fix today's emissions requires far more confidence than the evidence supports.
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Ruben Prütz @rubenpruetz.bsky.social · 10/09/2026
In a new Comment, published this week in #Nature Reviews Clean Technology and co-led with Quirina Rodriguez Mendez, we discuss ten prominent #narratives about the role of carbon dioxide removal (CDR) in the current academic #discourse. 📚💭 doi.org/10.1038/s443...
doi.org
Mapping conflicts in carbon removal narratives - Nature Reviews Clean Technology
Carbon dioxide removal has been described both as a mitigation necessity and as a risk to mitigation ambition or sustainability in the academic literature. This Comment examines the assumptions underl...
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Konstantin Weber @konstantinweber.bsky.social · 09/09/2026
Overshoot of 1.5 °C is inevitable, but don't forget that we need stringent methane mitigation to keep warming to below 2 °C. Without methane mitigation peak warming below 2 °C becomes unlikely, even with extremely ambitious CO2 emission reductions! www.nature.com/articles/s43247-026-03832-1
nature.com
Limiting warming by CO2 and methane mitigation in an expanded scenario space - Communications Earth & Environment
Systematically mapping peak warming across two main choices for climate policy – when carbon dioxide reaches net zero emissions and how fast methane emissions are cut – shows that near-term methane mi...
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Mike Sparrow @drmikesparrow.bsky.social · 09/09/2026
The trail of clues that our planet might be heating faster than we realised: www.bbc.co.uk/news/article...
bbc.co.uk
The trail of clues that our planet might be heating faster than we realised
A curious online row over this summer's heatwaves points to a wider - and worrying - shift in climate science.
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Ingrid Brodnig @brodnig.bsky.social · 08/09/2026
Mithilfe erbeten: Hat hier jemand die Erfahrung gemacht, wegen KI den Job zu verlieren? Oder gab es im eigenen Unternehmen Überlegungen dazu? Mich würden (anonymisiert) solche Erfahrungen journalistisch interessieren - schaue auch in meine DMs, also gerne dort schreiben Bin über RTs dankbar! 🙏
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Robert Finger @robertfinger.bsky.social · 07/09/2026
‚Assessing the Environmental, Economic and Social Impacts of a Greenhouse Gas Emission Tax in Swiss Agriculture‘ New paper in the Journal of Agricultural Economics. Led by Marta Tarruella, and with Nadja El Benni, Eva Winter, Robert Huber, Gabriele Mack onlinelibrary.wiley.com/doi/10.1111/...
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Konstantin Weber @konstantinweber.bsky.social · 02/09/2026
Methane Mitigation Matters We* have a new paper out today and the key message is that keeping warming well-below 2 °C requires strong reductions in methane (CH₄) emissions. Link to paper: www.nature.com/articles/s43... @carbonbrief.org guest post: www.carbonbrief.org/guest-post-w...
nature.com
Limiting warming by CO2 and methane mitigation in an expanded scenario space - Communications Earth & Environment
Systematically mapping peak warming across two main choices for climate policy – when carbon dioxide reaches net zero emissions and how fast methane emissions are cut – shows that near-term methane mi...
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Reposted by Konstantin Weber
Carbon Brief @carbonbrief.org · 01/09/2026
NEW – Guest post: Why tough methane cuts are crucial for keeping warming ‘well-below’ 2C | Written by @konstantinweber.bsky.social @retoknutti.bsky.social @brunncy.bsky.social Read here: buff.ly/rd13QpI
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Konstantin Weber @konstantinweber.bsky.social · 24/08/2026
Temperature overshoot means more than cleaning up a slightly bigger mess a little later. TL;DR: If we ever return to 1.5 °C, it will likely take centuries. The way overshoot scenarios are often sketched fails to highlight that. iopscience.iop.org/article/10.1...
iopscience.iop.org
Anchoring overshoot in reality
Anchoring overshoot in reality, Weber, Konstantin, von Rothkirch, Juanita, Brunner, Cyril, Knutti, Reto
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Gergana Gyuleva @ggyuleva.bsky.social · 20/08/2026
Radiation Trends Point to Higher Future Warming ‼️ 🌡️ How sensitive is Earth's climate to increasing CO₂ concentrations? Fresh insights in our new study: agupubs.onlinelibrary.wiley.com/doi/10.1029/... @retoknutti.bsky.social @erichfischer.bsky.social @sebastian-sippel.bsky.social
agupubs.onlinelibrary.wiley.com
Recent Temperature and Energy Imbalance Trends Point to Higher Estimates of Future Warming
Recent surface warming and top-of-atmosphere energy imbalance point to higher future warming than previously estimated Previous constraints on transient climate response using observed surface te...
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Konstantin Weber @konstantinweber.bsky.social · 03/05/2026
I have the pleasure to kick off #EGU tomorrow: First session, first talk 🥳! So get up "early" on Monday morning and join CL3.2.1 at 8:30 in Room 0.49/50! I'll present how methane mitigation affects the remaining carbon budget and peak warming🌡. There are also many great talks afterwards!
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Konstantin Weber @konstantinweber.bsky.social · 13/02/2026
National carbon budgets are smaller than commonly assumed because scientists and countries count CO₂ differently. Our new study in Nature Communications corrects for this and finds that the 1.5 °C budget shrinks by ~50%, the 2 °C budget by ~20%. Paper + data: www.nature.com/articles/s41... Thread 👇
nature.com
Tracking country-level mitigation progress using NGHGI-consistent carbon budgets - Nature Communications
This study shows that aligning remaining carbon budgets with national greenhouse gas inventory accounting reduces the global 1.5 ∘C (50%) budget by  ~100 GtCO2, with possible depletion around 202...
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Joeri Rogelj @joerirogelj.bsky.social · 23/06/2025
What becomes of the 1.5°C goal now that global warming is approaching that level?🌍🔥🌡️ In a new @science.org Policy Forum we explain how the 1.5°C goal remains a critical legal & ethical benchmark, even as the world nears and may soon exceed 1.5°C of global warming🧵1/ www.science.org/doi/10.1126/...
science.org
The pursuit of 1.5°C endures as a legal and ethical imperative in a changing world
As the world nears 1.5°C of global warming, near-term emissions reductions and adequate adaptation become ever more important to ensure a safe and livable planet for present and future generations
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Konstantin Weber @konstantinweber.bsky.social · 28/04/2025
For those part of the #EGU bubble: Join CL3.2.1 on Tuesay at 8:30 in Room 0.31/32: Towards net zero and beyond: remaining carbon budgets, negative emissions, mitigation pathways and implications for society. I have the pleasure of kicking it off and there are many great talks afterwards!
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David Ho @davidho.bsky.social · 14/03/2025
The people who produce this Mauna Loa atmospheric CO₂ record have a lab in Hilo, Hawaiʻi, about 50 miles (80 km) from the observatory. By closing the lab, it'll be really difficult to maintain the CO₂ observations.
A line graph showing atmospheric CO2 levels at Mauna Loa Observatory from 1955 to 2025. The y-axis represents CO2 mole fraction in parts per million (ppm), ranging from 320 to 420 ppm, while the x-axis is years.
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Ben Sanderson @benmsanderson.bsky.social · 27/01/2025
Optimist: the cup is half full Pessimist: the cup is half empty Net zero policy: No, the cup isn't empty! According to the baseline established when the cup was half full and factoring in the drink which Dave definitely owes me, we can continue drinking at current rates for the forseeable future.
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Florian Aigner @florianaigner.at · 11/01/2025
Alice Weidel nennt Universitäten "queer-woke Kaderschmieden" und sagt: "Wir schließen alle Gender Studies und schmeißen alle diese Professoren raus". Die Naturwissenschafts-Community muss sich hier klar auf die Seite der Geistes- & Sozialwissenschaft stellen. Das ist ein Angriff auf alle. (Thread)
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Joeri Rogelj @joerirogelj.bsky.social · 10/01/2025
With all the news about the latest data showing that temperatures in 2024 were 1.6°C warmer than pre-industrial levels, many have asked what this means for the 1.5°C of the UN Paris Agreement. A short 🧵that aims to distinguish the signal from the noise (1)
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Ingrid Brodnig @brodnig.bsky.social · 20/12/2024
In erschütternden Breaking-News-Situationen ist es immer sinnvoll, sich diesen Ratgeber vor Augen zu führen - von @onthemedia.bsky.social #Magdeburg
1. In the immediate aftermath, news outlets will get it wrong.
2. Don't trust anonymous sources.
3. Don't trust stories that cite another news outlet as the source of the information.
4. There's almost never a second shooter.
5. Pay attention to the language the media uses.
• "We are getting reports"... could mean anything.
• "We are seeking confirmation"... means they don't have it.
• "[News outlet] has learned"... means it has a scoop or is going out on limb. i
6. Look for news outlets close to the incident.
7. Compare multiple sources.
8. Big news brings out the fakers. And photoshoppers.
9. Beware reflexive retweeting. Some of this is on you.
ON THE MEDIA
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Konstantin Weber @konstantinweber.bsky.social · 08/12/2024
Very interesting post and opinion piece on climate policy. Focus on the US – but I think it's relevant for Europe, too: "... create durable economic incentives that would survive political transitions. When decarbonization becomes good business, it becomes harder to dismantle climate progress."
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Jan Hegenberg @graslutscher.de · 27/11/2024
Windkraft, Wärmepumpen und E-Busse sind übrigens genauso wenig linksgrün wie elektrisches Licht und elektrisches Kochen. Sie sind schlicht am effizientesten und setzen sich deswegen über kurz oder lang ohnehin durch. Die Frage ist eigentlich nur, ob da dann überall "made in China" draufsteht.
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Konstantin Weber @konstantinweber.bsky.social · 27/11/2024
Hat jemand eine Idee, wie es in anderen Bundesländern ausschaut, oder auch in der Schweiz?
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Ben Sanderson @benmsanderson.bsky.social · 23/11/2024
A visual illustration of the case for geological net zero.
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Reto Knutti @retoknutti.bsky.social · 18/11/2024
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/...
theguardian.com
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
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Prof. Sonia I Seneviratne @soniaseneviratne.bsky.social · 16/11/2024
Here is a starter pack of scientists based in Switzerland🇨🇭active in climate/environmental research (in nat. & soc. sciences) @retoknutti.bsky.social @robertfinger.bsky.social @jksteinberger.bsky.social @rarohde.bsky.social @florianaltermatt.bsky.social @kariningold.bsky.social go.bsky.app/5cJemte
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Zeke Hausfather @zekehausfather.com · 30/05/2024
The phaseout of sulfur in marine fuels in 2020 remains a part of the explanation for the weirdness we experienced in the latter half of last year, but far from the full one. For more, check our our new post over at The Climate Brink: www.theclimatebrink.com/p/a-problema...
theclimatebrink.com
A problematic estimate of warming from low-sulfur marine fuels
A new paper provides a reasonable forcing estimate but errs on the global temperature response
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ETH Zurich @ethz.ch · 17/05/2024
Renewable energies are not the main driver of biodiversity loss. It is rather the other way round: renewables can limit climate change in order to preserve biodiversity. Cyril Brunner contextualises the trade-​offs from a scientific perspective.
ethz.ch
Thinking climate action, biodiversity and energy supply together
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