Prof. Sonia I Seneviratne
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soniaseneviratne.bsky.social
Prof. Sonia I Seneviratne
@soniaseneviratne.bsky.social

Professor at ETH Zurich, IPCC WGI Vice-chair.
#Climate #Extremes #Land.
Citizen/mum/scientist. Personal account.
https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter11.pdf
Twitter/X: @SISeneviratne
https://www.iac.ethz.ch/people/sonia .. more

Sonia Isabelle Seneviratne is a Swiss climate scientist, professor at the Institute for Atmospheric and Climate Science of the ETH Zurich. She is a specialist of extreme climate events. .. more

Environmental science 61%
Geography 18%
Pinned
New starter pack with @ipcc.bsky.social #AR7 scientists (bureau, authors, REs)! Full list: apps.ipcc.ch/report/autho...
For SR cities scientists see separate starter pack!
@dianaurge.bsky.social @sherilee.bsky.social @siir-kilkis.bsky.social @janfuglestvedt.bsky.social
go.bsky.app/2FuXb3Y

"Our findings show that #SRM only proves beneficial under a narrow intersection of robust global mitigation, extremely low failure risk, & gradual phase-out. Paradoxically, the same governance failures that make SRM politically attractive undermine the very conditions needed for its safe operation."
New discussion paper just dropped that’s taken shall we say a little work to get this far … essd.copernicus.org/preprints/es... please be kind. Not on an at all sensitive topic in the slightest.
How well can we quantify when 1.5 °C of global warming has been exceeded?
Abstract. Parties to the 2015 Paris Agreement agreed to limit the long-term increase in global average temperature to well below 2 °C and pursue efforts to keep temperatures below 1.5 °C relative to p...
essd.copernicus.org
Artificially offsetting greenhouse gas warming using solar geoengineering to reflect away sunlight may be more costly than without if cut off suddenly, leading to “termination shock” of rapid warming: @iopp-environment.bsky.social study via @newscientist.com

iopscience.iop.org/article/10.1...
Economic assessment of SRM under socio-political and geophysical tipping dynamics
Economic assessment of SRM under socio-political and geophysical tipping dynamics, Estrada, Francisco, Bastien-Olvera, Bernardo A, Calderon-Bustamante, Oscar, Altamirano, Miguel A, Muñoz-Sánchez, Rodrigo, Moreno-Cruz, Juan, Botzen, Wouter
iopscience.iop.org
Very exciting to share that @climatecentral.org is hiring a Climate Data Scientist to join a new climate services effort focused on advancing predictions of risks and hazards on seasonal-to-decadal timescales. The application closes on February 9, 2026 at 5pm ET, & the description can be found here:
Climate Data Scientist | Climate Central
Climate Central is seeking a highly-skilled Climate Data Scientist to join our team. Reporting to the Vice President for Science, the scientist will be part of a new initiative in climate services to ...
www.climatecentral.org
Wind and solar used to play a niche role when I started to work on energy in 2004.

Last year they overtook fossil generation in the EU for the first time.
“The speed, the scope and the severity of the attacks on science are beyond anything we’ve ever seen,” says @gretchentg.bsky.social.

My @nature.com story on the human toll of the 2nd Trump presidency.

Thx to @dochfroehlich.bsky.social, @briannosek.bsky.social, @katharinehayhoe.com & others.
‘Shattered’: US scientists speak out about how Trump policies disrupted their careers
Researchers lay bare the human toll of lay-offs, funding cuts and attacks on science one year after the president’s return to the White House.
www.nature.com
This is so grim. Science isn’t just something nerds do, but the foundation of the modern world. What the Trump regime has done to US science will harm Americans for generations.
‘Shattered’: US scientists speak out about how Trump policies disrupted their careers
Researchers lay bare the human toll of lay-offs, funding cuts and attacks on science one year after the president’s return to the White House.
www.nature.com
A rare bit of good news from the US. House republicans seem to be pushing back against Trump's huge proposed cuts to science.

NSF, NASA, NOAA - all look set to be near flat, or - for DOE - even a slight increase.

www.economist.com/united-state...
Important and timely wide-ranging interview with one of the world's most influential climate scientists.

Some of what he tells @rtmcswee.carbonbrief.org is, frankly, breathtaking.

A call to action for all scientists, not just those focused on climate change.
The global warming trend continued in 2025. Each of the past 11 years (2015–2025) has been among the 11 warmest on record. Explore more data from #CopernicusClimate in the Global Climate Highlights 2025. #GCH2025

🔗 climate.copernicus.eu/global-clima...

@ecmwf.int
2025 global climate highlights are out:
🌡️ 2025 was 3rd warmest year on record, 1.47ºC above the preindustrial level
📈 2023-2025 is the first three year period above 1.5ºC (according to ERA5)
🌍 The last 11 years have been the warmest 11 years on record

See: climate.copernicus.eu/global-clima...

⚒️🧪🌊
NEW – Analysis: The climate papers most featured in the media in 2025 | @rtmcswee.carbonbrief.org @ayeshatandon.carbonbrief.org

Read here: buff.ly/sF3cD1c
US scientists push back as Trump eyes Greenland
An open letter organized by US-based researchers who work in Greenland opposes any takeover of the territory.

www.nature.com/articles/d41...
Scoop: The EPA will no longer estimate the lives saved by reducing air pollution when writing clean-air regulations, according to documents reviewed by @nytimes.com.
Gift link: www.nytimes.com/2026/01/12/c...
E.P.A. to Stop Considering Lives Saved When Setting Rules on Air Pollution
www.nytimes.com

Very sad start of the year in Switzerland with so many dead & injured young people. My thoughts go to the families, their communities & loved ones. Many victims came from Lutry where I grew up and/or attended the gymnase de Chamblandes, my high school many years ago.
www.swissinfo.ch/eng/various/...
Switzerland holds minute’s silence for Crans-Montana bar fire victims
Switzerland came to a standstill on Friday as church bells rang nationwide and a minute’s silence honoured the victims of the bar fire in Crans‑Montana.
www.swissinfo.ch
the @australia.theguardian.com published an oped by me today.
This heatwave is bad.
The bushfires it is enabling are also bad.
Climate scientists & meteorologists are incredibly concerned about the next 48 hours.
And this is just a taste of what's to come.
www.theguardian.com/commentisfre...
As a climate scientist, I know heatwaves in Australia will only get worse. We need to start preparing now | Sarah Perkins-Kirkpatrick
During black summer, my daughters were too young to know what was happening. Now, amid another Australian heatwave, they deserve answers
www.theguardian.com

IPCC Statement: The @ipcc.bsky.social is an organisation consisting of governments that are members of the UN or WMO. "[P]articipation in the work & processes of the IPCC is voluntary, free & open to all WMO & UN Member countries -with or without a formal announcement."
www.ipcc.ch/2026/01/08/s...
IPCC Statement on the US announcement to withdraw from participation in IPCC — IPCC
www.ipcc.ch
It appears there is no withdraw process for @ipcc.bsky.social, participation in which is voluntary, free and open to all UN and WMO members. So the Trump administration’s supposed withdraw means less than their June firing of all the staff of the State Dept’s Office of Global Change
IPCC Statement on the US announcement to withdraw from participation in IPCC — IPCC
www.ipcc.ch
Trump moves to pull the US from bedrock climate treaty, UN IPCC and other int'l orgs & UN agencies. In doing so, the US becomes the only country to withdraw from this particular climate agreement dating back to 1992 (UNFCCC). www.cnn.com/2026/01/07/c...
Trump moves to pull US out of bedrock global climate treaty, becoming first country to do so | CNN
The Trump administration is pulling the United States out of the bedrock treaty that underpins international cooperation on climate change, along with dozens of other global bodies.
www.cnn.com
Can't claim my own data are quite as convincing, but when I deleted my Twitter account in August 2022, it took <1 month to get the same "engagement." If anything, it meant more (direct) journalist pings, including from @npr.org: "I miss seeing your posts..., have a minute to talk?"
🌐 Introducing the Copernicus Data Stores Applications Catalogue! A curated collection of interactive tools built on data from the Copernicus Climate Change Service (C3S) and Copernicus Atmosphere Monitoring Service (CAMS).
⬇️
📢 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): www.egu26.eu/session/56763
Registration is now open for experts interested in reviewing the first draft of the IPCC Methodology Report on Inventories for Short-lived Climate Forcers!

Register here 🔗 https://apps.ipcc.ch/comments/slcf/ until midnight CET on 13 February 2026.

Read more 🔗 https://bit.ly/SLCFfod

Un excellent article dans @letemps.ch sur la situation des scientifiques du climat aux USA:
www.letemps.ch/sciences/le-...
@weatherwest.bsky.social @effetsdeterre.bsky.social
Some reflections after returning back from a conference at which I and 20,000 colleagues learned that the Trump administration intends to dismantle #NCAR. This outrage should not happen. deepconvection.substack.com/p/save-ncar
Save NCAR
Field notes from New Orleans, where I and 20,000 colleagues learned that Trump intends to destroy the National Center for Atmospheric Research.
deepconvection.substack.com
If you are in the US and you would like to send a message to your elected representative about the proposed dissolution of the National Center for Atmospheric Research, @agu.org makes it easy with a template here: agu.quorum.us/campaign/151... #AGU25
Save NCAR from being dismantled today!
The Trump Administration has vowed to dissolve the center that provides critical extreme weather and climate data for our nation.
agu.quorum.us