Reto Knutti

@retoknutti.bsky.social

12K followers 560 following 180 posts

Professor for climate physics at @ethzurich.bsky.social.

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Environmental science 51%

Geography 16%

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Reto Knutti @retoknutti.bsky.social · Feb 10

📺 📻 🗞️ Petition: SRF Wissensjournalismus stärken!

Innovation, KI, Medizin, Klima, Energie... In einer immer komplexeren Welt mit mehr Fakenews ist eine starke SRF Wissenschaftsredaktion unverzichtbar.

Offener Brief aus der Wissenschaft unterschreiben und teilen!

openpetition.eu/!sciencejour...

Fakten statt Falschinformationen: Für einen starken Wissenschaftsjournalismus! - Online-Petition

Offener Brief aus der Wissenschaft an SRF Sehr geehrte Direktion der SRG, sehr geehrte Geschäftsleitung von SRF, sehr geehrte Medien- und Wissenschaftspolitiker:innen Mit grosser Besorgnis haben wir z...

openpetition.eu

Reposted by Reto Knutti, Paul Behrens

Climate Extremes Documentary @climatextremes.bsky.social · Jul 19

"What used to be basically impossible 20 years ago has become almost mainstream these days". Watch Climate Extremes: Extreme Weather to learn about climate change and extreme weather from leading scientists such as @retoknutti.bsky.social! youtube.com/watch?v=X6VC...
#extremeweather #climatechange

Reposted by Reto Knutti

Climate Extremes Documentary @climatextremes.bsky.social · Jul 19

What are the mechanisms that generate precipitation? What is the relationship between extreme weather events and climate change? Watch Climate Extremes: Extreme Weather to learn from leading scientists such as @retoknutti.bsky.social! youtube.com/watch?v=X6VC... #extremeweather #climatechange

Reto Knutti @retoknutti.bsky.social · Jun 8

Jede Tonne CO2 richtet Schaden an, der Verursacher zahlt jedoch nicht. Aber was würde die Tonne CO2 denn kosten, und würde das das Problem lösen? 💰💵

greencircle.ch/de/energie/e...

Was kostet eine Tonne CO₂?

Die Folgen unserer CO₂-Emissionen sind grösser, als man früher dachte. Ein CO₂-Preis nach dem Verursacherprinzip könnte helfen, ist aber kein Allheilmittel.

greencircle.ch

Reposted by Reto Knutti

Richard Allan @rpallanuk.bsky.social · May 12

The doubling of the rate of global heating in recent decades has surprised the scientific community so needs to be better understood yet our capability to measure Earth's energy imbalance is at risk: doi.org/10.1029/2024...

Time series showing growing Earth energy imbalance (greater heating) this century

Earth's energy imbalance needs to decline to stabilise global temperatures but it is growing

Reposted by Reto Knutti

Cyril Brunner @brunncy.bsky.social · May 2

Next Tuesday evening, we are delighted to have one of the most remarkable and inspiring scientists as our guest. If you've never heard Naomi Oreskes @naomioreskes.bsky.social (Harvard University) in person, this is your chance at ETH Zürich as part of the SPEED2ZERO Perspective series.

Reto Knutti @retoknutti.bsky.social · Apr 29

The US brain drain.
Cutting science, innovation and education is an incredibly short-sighted strategy. The loss in competitiveness, innovation, leadership and economic value to society is large, long-lasting and almost certainly exceeds the short-term savings by far.

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

Exclusive: a Nature analysis signals the beginnings of a US science brain drain

A trawl of job views and application data suggests jobseekers are looking abroad as the Trump administration’s cuts to science take hold.

www.nature.com

Reto Knutti @retoknutti.bsky.social · Apr 29

What a project! A group students talking to climate scientists. It was a pleasure to be part of this and share my views on climate and the role of scientific information in society.

Open access.
link.springer.com/book/10.1007...

Conversations on Climate: The People Behind the Science

This is an open access book which presents interviews with high-profile climate scientists about state-of-the-art research questions

link.springer.com

Reto Knutti @retoknutti.bsky.social · Mar 24

Wir verlieren in der Schweiz beim Klimaschutz den Anschluss, obwohl wir alle Voraussetzungen dazu hätten und es sich langfristig lohnen würde.

Interview auf Ringier Green Circle:
greencircle.ch/de/natur/kli...

«Wir sind ein Volk von Nein-Sagern»

Schokolade, Käse, Jassen, Skifahren: In diesen Bereichen sind wir spitze. Beim Klimaschutz aber nicht. Innerhalb eines Jahres sind wir im Länder-Ranking von Platz 21 auf Platz 33 abgestürzt. ETH-Klima...

greencircle.ch

Reposted by Reto Knutti

Prof Paul Williams @profpaul.bsky.social · Mar 4

Powerful words from the American Geophysical Union.

Reposted by Reto Knutti, Natalie C. Ban, Christoph Scherber , and 6 more Reto Knutti, Natalie C. Ban, Christoph Scherber, Amanda E. Bates, Peter Brown, Olaf Weber, Tamara Dubowitz, Bethanie Carney Almroth, Angela Potochnik

David Shiffman, Ph.D. 🦈 @whysharksmatter.bsky.social · Mar 3

Today, a broad coalition of scientific professional societies who represent over 92,000 scientists are speaking out against the politicization and demonization of Federally funded science and government scientist jobs.

It was an honor to help the Union of Concerned Scientists with this! 🧪🌎

48 Scientific Societies Representing Almost 100,000 Scientists Ask Congress to Protect the Future of Science

48 scientific societies representing almost 100,000 scientists signed on to a letter asking Congress to protect the future of science

www.ucsusa.org

Reposted by Reto Knutti

Simon Donner @simondonner.bsky.social · Feb 28

Stand Up for Science protests are happening Friday, March 7th in over 30 US cities.
standupforscience2025.org

Reposted by Reto Knutti, Loïc Pellissier

ELE-ETHWSL.bsky.social @ele-ethwsl.bsky.social · Feb 28

We've computed high-resolution extinction risk maps for aquatic & terrestrial species across Switzerland.

🌍🔬 They highlight the importance of each pixel for conserving species richness at the national scale.

🏞️🐟 #SPEED2ZERO #Biodiversity #Conservation

Reposted by Wouter Dorigo

Reto Knutti @retoknutti.bsky.social · Feb 25

BP: from "Beyond Petroleum" to "Back to Petroleum"

www.theguardian.com/business/202...

BP expected to scrap renewables target in shift back to fossil fuels

Goal of increasing renewable energy generation 20-fold to be ditched, shareholders to be told this week

www.theguardian.com

Reto Knutti @retoknutti.bsky.social · Feb 25

The elections in Germany provide "...further evidence that the green wave that swept Europe a few years ago was an outlier, rather than the new normal"

www.theguardian.com/world/2025/f...

German election shows how far green wave has receded in Europe

Result is further evidence that political conversation around the climate crisis has shifted

www.theguardian.com

Reposted by Erich Fischer

Reto Knutti @retoknutti.bsky.social · Feb 14

Es geht uns alle an. SRF gehört zu den wenigen Medienhäusern, die in der Wissenschaft noch fundierte Berichterstattung leisten. Danke!👏
Helfen wir Ihnen, dass das so bleibt.

✏️✏️✏️ Unterschreiben, teilen, kommentieren!
www.openpetition.eu/ch/petition/...

Fakten statt Falschinformationen: Für einen starken Wissenschaftsjournalismus! - Online-Petition

www.openpetition.eu

Reposted by Erich Fischer

Reto Knutti @retoknutti.bsky.social · Feb 14

Ignoranz 🤷‍♀️und Lügen 🤥 sind gefährlich. Warum wir in einer immer komplexeren Welt 💊⚙️📱⚡🌊🧬📡 mehr Fakten, Lösungen und einen starken Wissenschaftsjournalismus brauchen📻 🎥 🔍.

greencircle.ch/de/energie/k...

«Sparen beim Wissenschafts-Journalismus ist gefährlich»

Ignoranz und Lügen stellen eine Gefahr für die Demokratie dar, meint Gastkommentator Reto Knutti, Klima-Experte der ETH. Warum wir in seinen Augen in einer immer komplexeren Welt mehr Fakten, Lösungen...

greencircle.ch

Reto Knutti @retoknutti.bsky.social · Feb 12

"Fundamentally reset our strategy"= "Drill, baby, drill"

www.bbc.com/news/article...

BP profits drop as it says it will reset strategy

The oil giant is widely expected to say it will scale back on renewables later this month.

www.bbc.com

Reto Knutti @retoknutti.bsky.social · Feb 10

When facts are inconvenient or don't matter any more, we can simply get rid of science.

The US shows what can happen if you weaken the public's understanding and relevance of science, technology and innovation.

www.science.org/content/arti...

‘My boss was crying.’ NSF confronts potentially massive layoffs and budget cuts

Trump could propose slashing agency’s budget by two-thirds

www.science.org

Reposted by Reto Knutti

Fredy Neeser @fredyneeser.bsky.social · Feb 10

Wissenschaftsjournalismus bei SRF stärken – Petition jetzt unterschreiben und teilen! 🙏

www.openpetition.eu/ch/petition/...

Reposted by Reto Knutti

Andreas Wiesmann @andreaswiesmann.ch · Feb 10

Offener Brief aus der Wissenschaft: lesen, unterschreiben, und teilen!

Denn Wissenschaftsjournalismus ist
👉 wichtig für den Forschungs- Bildungsstandort Schweiz
👉 Kernaufgabe des Service Public
👉 notwendig für eine funktionierende direktdemokratischen Schweiz

www.openpetition.eu/ch/petition/...

Engagieren Sie sich weiter!

www.openpetition.eu

Reto Knutti @retoknutti.bsky.social · Feb 8

Details:

www.linkedin.com/posts/reto-k...

Reto Knutti on LinkedIn: SRF will bei der Wissensredaktion massiv abbauen aber unterbindet die… | 89 comments

SRF will bei der Wissensredaktion massiv abbauen aber unterbindet die Diskussion dazu. Am Donnerstag wird bekannt, dass SRF massiv kürzen will. Posts von der… | 89 comments on LinkedIn

www.linkedin.com

Reto Knutti @retoknutti.bsky.social · Feb 8

Details:

www.linkedin.com/posts/reto-k...

Reto Knutti on LinkedIn: SRF will bei der Wissensredaktion massiv abbauen aber unterbindet die… | 89 comments

SRF will bei der Wissensredaktion massiv abbauen aber unterbindet die Diskussion dazu. Am Donnerstag wird bekannt, dass SRF massiv kürzen will. Posts von der… | 89 comments on LinkedIn

www.linkedin.com

Reto Knutti @retoknutti.bsky.social · Feb 8

SRF streicht die Wissensredaktion zusammen und unterbindet die Diskussion dazu

www.watson.ch/schweiz/wiss...

Linkedin-Posts von verärgerten Mitarbeitenden gelöscht – jetzt äussert sich das SRF

Auf LinkedIn machten SRF-Mitarbeitende ihrem Ärger über die Sparmassnahmen Luft. Nun sind die Posts allesamt gelöscht. Ein ETH-Professor kritisiert, das SRF erklärt sich.

www.watson.ch

Reto Knutti @retoknutti.bsky.social · Feb 8

SRF streicht Wissenschaftsredaktion zusammen und unterbindet die Diskussion dazu

www.nau.ch/news/schweiz...

SRF pfeift Mitarbeiter nach öffentlicher Kritik an Sparhammer zurück

SRF-Mitarbeiter haben sich auf den sozialen Medien kritisch zu den Sparmassnahmen des SRF geäussert. Nun sind die Posts verschwunden.

www.nau.ch

Reto Knutti @retoknutti.bsky.social · Jan 22

Reported.

Reposted by Reto Knutti

Ed Hawkins @edhawkins.org · Jan 15

In 2018, @blkahn.bsky.social said that the warming stripes graphic 'belongs in a damn museum', even suggesting that it was 'fit for the Museum of Modern Art' (see gizmodo.com/this-climate...).

Well...

Later this month, they will appear in the Museum of Modern Art: press.moma.org/exhibition/p...

This Climate Visualization Belongs in a Damn Museum

Reto Knutti @retoknutti.bsky.social · Jan 15

While "crisis, emergency, catastrophe" might give you more immediate attention, it's far from clear it is more effective to induce change. A recent scientific indicates the opposite.
www.anthropocenemagazine.org/2024/09/whic...

Which term carries a bigger punch: climate emergency or climate change?

A new study found that when presented with unfamiliar climate terms, people were less likely to express concern, urgency, or policy support

www.anthropocenemagazine.org

Reto Knutti @retoknutti.bsky.social · Jan 11

Thanks. All correct. I am one of the orginal authors of one of Solomon er al., one of the first studies.
The most recent review on the topic is here:

www.frontiersin.org/journals/sci...

Frontiers | The Zero Emissions Commitment and climate stabilization

How do we halt global warming? Reaching net zero carbon dioxide (CO2) emissions is understood to be a key milestone on the path to a safer planet. But how co...

www.frontiersin.org

Reto Knutti @retoknutti.bsky.social · Jan 10

Essentially all inhabited places on the planet were warmer in 2024 than the recent baseline. Most of the ocean area too.

About 1/3 of the planet experienced record high temperatures.

We know why.

And we know how to fix it.

@copernicusecmwf.bsky.social
climate.copernicus.eu/global-clima...

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