What happens if subducted slabs interact with hot material at the base of the upper mantle? In Yingying Li's first paper doi.org/10.1029/2025... we show how this can lead to (secondary) upper mantle plumes. With @sasbrune.bsky.social, Eline Le Breton, Anne Glerum and @michapons.bsky.social.

As the calendar year begins, a reminder of the rapid acceleration of carbon dioxide concentration in the atmosphere, driving increasingly severe #climate changes. Shown are the past 2000 years of CO2 concentrations. Stop burning fossil fuels.

Kann man nicht oft genug teilen.

Even after 10 years, it is still important (and necessary) to demonstrate for compliance with the Paris Agreement on climate change.

Um das meiste aus dem CO2 footprint für die Forschungsfahrt im Pazifik zu machen, mache ich viele Zwischenhalte und vermeide Flüge wo möglich. climatewednesday.org/von-taipei-n... Sicher mehr Organisationsaufwand als fliegen, aber man sieht viel mehr und es ist ein großartiges Erlebnis.

Dieses Thema liegt mir am Herzen. Bitte hier unterzeichnen: weact.campact.de/petitions/bu...

An article by @christianstoecker.de about my biggest worry www.spiegel.de/wissenschaft... - on this topic, see also the recent open letter, de.scientists4future.org/2178-scienti... initiated in part by @de.scientists4future.org which I also signed.

Koko Seamount (Emperor Chain) on 5-6 km deep ocean floor supposedly reaches up to -26 m! Last night Hakuhomaru passed there. In 2001 on Joides Resolution we drilled basalts to document Hawaii hotspot motion www.science.org/doi/10.1126/.... Amazing I would come to this remote place twice in my life!

How do BLOBs in Earth’s mantle affect seismic waves? Research by @poulamiroy.bsky.social & @bstein.bsky.social of @gfz.bsky.social and colleagues offers new insights. eos.org/research-spo...

Happy to share that our recent paper on global-scale geodynamic + seismic anisotropy simulation is on Eos spotlight. With @bstein.bsky.social , Manuele Faccenda , @michapons.bsky.social Enjoy reading! :) eos.org/research-spo...

A cloudy day on Hess Rise. In 2019 we wrote doi.org/10.1029/2019... on the origin of Hess Rise, I can't believe now I'm actually here, on board of Hakuhomaru. But we actually want to look in the mantle beneath, for vestiges of material emplaced by the Hawaiian Plume during Emperor Chain formation

3rd paper from @poulamiroy.bsky.social's Ph.D. just out at doi.org/10.1029/2025.... Combined global models of mantle flow and anisotropy constrain deformation mechanisms and viscosity, density and hence compositional structure of lowermost mantle. With Manuele Faccenda, @michapons.bsky.social & me.

The loading has begun. For some scientific background, see my presentation docs.google.com/presentation...

... all road signs and traffic lights ...

Im Susan hungern über 24 Mio. Menschen wegen Dürre und eines Bürgerkriegs seit 2023, der wenig wahrgenommen wird. Jedes dritte Kind ist akut unterernährt. Ich weiß, es gibt viele Krisen und Afrika ist weit weg. Aber gerade deswegen sind Spenden wichtig. www.welthungerhilfe.de/spenden-sudan

Ein sehr gutes (wie ich meine) und detailliertes interview über einige meiner Forschungsarbeiten youtu.be/YP9ceVYoOTY

My first boat trip this year - to Pfaueninsel. The next one will probably be slightly longer - a research cruise from Honolulu to Tokyo. Stay tuned for more details!

Mark the date: On July 15, it will be possible to submit articles to geodynamica.univ-lyon1.fr - it will be completely free for both authors and readers! I'm glad to be on the editorial team. Don't let some money-grubbing publishing company get between you and your research results; publish with us!

... and it even greeted us with a heart.

Ich bin dabei!

Wondering what is the anisotropic signature of slab-induced plumes from thermochemical piles in the lowermost mantle? Then find out from Poulami Roy's paper agupubs.onlinelibrary.wiley.com/doi/10.1029/... co-authored by Manuele Faccenda, @michapons.bsky.social and myself

The US does not stand for freedom and democracy any more, but is sliding fast into tyranny. Harvard is punished for standing up to this. If you’re in the US and not doing something now, soon you will be unable to do anything. We know this from experience here in Germany.

Doing a Ph.D. at Harvard meant working really hard having a real good time. I immensely enjoyed living and research in this inspiring and motivating environment, with the best people from around the world. Luckily, Trump wasn't president at that time. I stand with Harvard. www.br.de/nachrichten/...

Wie weit ist es eigentlich zum Erdmittelpunkt? Das habe ich mit Jana Magdanz beim Maus Podcast besprochen www.wdrmaus.de/hoeren/podca...

Real Climate Solutions Are Beneath Us eos.org/opinions/rea...

My home for the next 13 hours

Wien, wir kommen! Treffpunkt: Berlin HBF zur Fahrt mit dem Zug. #Train2EGU Mehr als 100 GFZ-Forschende reisen dieser Tage zur EGU, der größten geowissenschaftlichen Konferenz in Europa. Über 19.000 Wissenschaftler:innen aus aller Welt tauschen sich über ihre neueste Forschung aus. @egu.eu

Turns out that I did my Ph.D. at an institution that "keeps pushing political, ideological, and terrorist inspired/supporting “Sickness?”"

Unser Forscher @bstein.bsky.social vergleicht den Effekt mit "postglacial rebound", also der Hebung von Land, das zuvor durch eiszeitliche Gletscher eingedellt war. Nur, dass diesmal nicht natürliche Klimavariabilität, sondern der Mensch die Ursache einer Krise wahrhaft planetaren Ausmaßes ist (€)

Scientific recycling: In doi.org/10.1029/2024... I use results from Poulami Roy's Ph.D. thesis to address why plume excess temperatures are much less than temperature drop across the lowermost-mantle thermal boundary layer. Further co-authors @michapons.bsky.social and Matteo Jopke. (continued)

Did Gomphotheria follow northward flow of mantle plume material when first migrating to Eurasia? Find out in Straume et al, with @thwbecker.bsky.social, @alexislicht.bsky.social, myself @gfz.bsky.social & others, in @natrevearthenv.bsky.social. For 1-minute summary: www.youtube.com/watch?v=pDeL...

Wir haben heute den Appell von über 13.000 Wissenschaftler:innen übergeben. Unserer Einladung sind Abgeordnete von @spdfraktion.de, @gruene-bundestag.de und @dielinkebt.bsky.social gefolgt. Der Appell zum Nachlesen: www.bayceer.uni-bayreuth.de/s4f/de/top/o... #KlimaschutzIstDasFundament

Über 12.000 inzwischen!

More than 10,000 scientists living, working or educated in Germany have already signed this appeal by @de.scientists4future.org to the members of the newly elected parliament to step up efforts for climate protection. Click here www.bayceer.uni-bayreuth.de/s4f/de/top/o... if you'd like to join.

More than 2000 Scientists living, working or educated in Germany have already signed this appeal by @de.scientists4future.org to the members of the newly elected parliament to step up efforts for climate protection. Click here www.bayceer.uni-bayreuth.de/s4f/de/top/o... if you'd like to join.

This cause is close to my heart - please sign: weact.campact.de/petitions/of...

Puh, zum Glück wohne und arbeite ich im einzigen Teil der Ex-DDR der schwarz eingefärbt ist!

The democratic choices on one lamp post - who should I choose on Sunday? Note that here in Potsdam we can directly vote for Scholz - not as chancellor, though, but as MP.

Aus. Vorbei. Zum ersten Mal in meinem Leben werde ich meine Stimme bei einer Bundestagswahl nicht abgeben können. Tausenden Auslandsdeutschen geht es genauso. Warum ich stocksauer bin. 👇👇👇 www.rnd.de/politik/bund...

klima-retten.jetzt - und mit den Rechten sind hier nach meinem Verständnis nicht die CDU/CSU gemeint sondern AfD und Konsorten.

I'm in a time warp - back in 1980

Heute im Tagesspiegel

Now I realize that I had always misunderstood how the greenhouse effect works. Doesn't change that I am very worried about too much CO2 in the atmosphere, and think we need to reach net zero as soon as possible, and substantial negative emissions for many decades thereafter.

Post a picture you took (no description) to bring some zen to the timeline

I really enjoy all of the videos by Sabine Hossenfelder and watch them almost every day, but this one I particularly enjoyed www.youtube.com/watch?v=58I6...

Jackson, M. G., Finlayson, V. A., Steinberger, B., & Konrad, K. (2024). When a plateau suppresses a plume: Disappearance of the Samoan plume under the Ontong Java Plateau. AGU Advances, 5, e2023AV001079. doi.org/10.1029/2023...

Klimastreik in Potsdam mit Beteiligung von @de.scientists4future.org

#Europa steht am Scheideweg. Die #Klimakrise verschärft sich und gleichzeitig gewinnen Parteien an Einfluss, die sowohl die #Demokratie als auch den #Klimaschutz bedrohen. Deswegen gehen wir am 31. Mai mit @fffberlin.bsky.social auf die Straße. Unsere Zukunft, unsere Wahl. #Europawahl #Klimastreik

Scientists for Future und Fridays for Future in Wien! Kurz auf dem weg von EGU zum Bahnhof vorbeigeschaut.