Donovan Dennis
@donovanpdennis.com
Glaciologist, geochemist, writer 🏳️🌈🔥. Fan of cold hard facts gathered via equitable means. 🏔️ enthusiast. Formerly @gfz.bsky.social, now @pik-potsdam.bsky.social. Hier privat 😘.
📍Berlin
www.donovanpdennis.com
📍Berlin
www.donovanpdennis.com
Happening in one hour! Join online here: www.youtube.com/@iccinet/str...
November 17, 2025 at 12:03 PM
Happening in one hour! Join online here: www.youtube.com/@iccinet/str...
You read the study in the Global Tipping Points Report, now join @iceybethan.bsky.social @ricarda-winkelmann.bsky.social, Judy Daxootsu Ramos and Annika Ord and me to discuss glacier loss and tipping points southeast Alaska at the #COP30 Cryosphere Pavilion next Monday.
@pik-potsdam.bsky.social
@pik-potsdam.bsky.social
November 14, 2025 at 9:46 AM
You read the study in the Global Tipping Points Report, now join @iceybethan.bsky.social @ricarda-winkelmann.bsky.social, Judy Daxootsu Ramos and Annika Ord and me to discuss glacier loss and tipping points southeast Alaska at the #COP30 Cryosphere Pavilion next Monday.
@pik-potsdam.bsky.social
@pik-potsdam.bsky.social
Reposted by Donovan Dennis
Wie geht das mit den Kipppunkten?
Eindrucksvoller Kurzfilm von @artede.bsky.social zur gefährlichen Dynamik durch #Klimawandel, mit Input der PIK-Fachleute Shivani Ehrenfeucht und @rahmstorf.bsky.social .
„Jedes Grad, jeder Bruchteil eines Grades zählt.“
www.arte.tv/de/videos/12...
Eindrucksvoller Kurzfilm von @artede.bsky.social zur gefährlichen Dynamik durch #Klimawandel, mit Input der PIK-Fachleute Shivani Ehrenfeucht und @rahmstorf.bsky.social .
„Jedes Grad, jeder Bruchteil eines Grades zählt.“
www.arte.tv/de/videos/12...
October 24, 2025 at 2:07 PM
Wie geht das mit den Kipppunkten?
Eindrucksvoller Kurzfilm von @artede.bsky.social zur gefährlichen Dynamik durch #Klimawandel, mit Input der PIK-Fachleute Shivani Ehrenfeucht und @rahmstorf.bsky.social .
„Jedes Grad, jeder Bruchteil eines Grades zählt.“
www.arte.tv/de/videos/12...
Eindrucksvoller Kurzfilm von @artede.bsky.social zur gefährlichen Dynamik durch #Klimawandel, mit Input der PIK-Fachleute Shivani Ehrenfeucht und @rahmstorf.bsky.social .
„Jedes Grad, jeder Bruchteil eines Grades zählt.“
www.arte.tv/de/videos/12...
Reposted by Donovan Dennis
🧊Donovan Dennis
(@donovanpdennis.com, @pik-potsdam.bsky.social ) is a glaciologist exploring the current state of glaciers and ice sheets, and what their loss means for our planet
(@donovanpdennis.com, @pik-potsdam.bsky.social ) is a glaciologist exploring the current state of glaciers and ice sheets, and what their loss means for our planet
October 21, 2025 at 4:47 PM
🧊Donovan Dennis
(@donovanpdennis.com, @pik-potsdam.bsky.social ) is a glaciologist exploring the current state of glaciers and ice sheets, and what their loss means for our planet
(@donovanpdennis.com, @pik-potsdam.bsky.social ) is a glaciologist exploring the current state of glaciers and ice sheets, and what their loss means for our planet
Reposted by Donovan Dennis
Here we go again! 🎤 Our event "Diverse minds, shared future", in collaboration with the LGBTQ+ STEM group during the Berlin Science Week, is approaching fast!
We're excited to start introducing the amazing speakers joining us for this year's event
We're excited to start introducing the amazing speakers joining us for this year's event
October 21, 2025 at 4:47 PM
Here we go again! 🎤 Our event "Diverse minds, shared future", in collaboration with the LGBTQ+ STEM group during the Berlin Science Week, is approaching fast!
We're excited to start introducing the amazing speakers joining us for this year's event
We're excited to start introducing the amazing speakers joining us for this year's event
The #JuneauIcefield is a deeply meaningful place for me and many others, part of the reason we put so much care into our case study on tipping of Áakʼw Tʼáak Sítʼ (Mendenhall Glacier), one of the icefield's major outlet glaciers.
The study is out today as part of the Global Tipping Points Report.
The study is out today as part of the Global Tipping Points Report.
October 13, 2025 at 11:23 AM
The #JuneauIcefield is a deeply meaningful place for me and many others, part of the reason we put so much care into our case study on tipping of Áakʼw Tʼáak Sítʼ (Mendenhall Glacier), one of the icefield's major outlet glaciers.
The study is out today as part of the Global Tipping Points Report.
The study is out today as part of the Global Tipping Points Report.
Ready for @berlinscienceweek.bsky.social?! Come by the Diverse Minds, Shared Future event on 1 Nov from @berlin-soapbox.bsky.social and LGBTQIA+ STEM Berlin. You’ll hear six great talks, including one about glacier tipping points 😉. No PowerPoints, just props!
berlinscienceweek.com/programme/di...
berlinscienceweek.com/programme/di...
Diverse Minds, Shared Future
Our event brings the fascinating world of science to the streets, merging scientific inquiry with artistic expression. The invited speakers, women and queer scientists, present their research in a jar...
berlinscienceweek.com
October 8, 2025 at 10:50 AM
Ready for @berlinscienceweek.bsky.social?! Come by the Diverse Minds, Shared Future event on 1 Nov from @berlin-soapbox.bsky.social and LGBTQIA+ STEM Berlin. You’ll hear six great talks, including one about glacier tipping points 😉. No PowerPoints, just props!
berlinscienceweek.com/programme/di...
berlinscienceweek.com/programme/di...
It's hard to believe that nearly a decade has passed since @geojane.bsky.social went to B.U.'s administration and detailed her shocking experiences as a grad student under my then-adviser, Dave Marchant.
In the years since, we have learned of so, so, so many others who likewise abused their (1/7)
In the years since, we have learned of so, so, so many others who likewise abused their (1/7)
May 14, 2025 at 11:59 AM
It's hard to believe that nearly a decade has passed since @geojane.bsky.social went to B.U.'s administration and detailed her shocking experiences as a grad student under my then-adviser, Dave Marchant.
In the years since, we have learned of so, so, so many others who likewise abused their (1/7)
In the years since, we have learned of so, so, so many others who likewise abused their (1/7)
Super stoked to be one of the speakers at this year's #PrideHike in the beautiful Kaisergebirge! I'll be chatting all weekend about the changing alpine environment and how that impacts us ~all~, especially those of us whose happy place is up in the thin air. Thanks to Osprey (packs) Europe for (1/2)
May 7, 2025 at 2:00 PM
Super stoked to be one of the speakers at this year's #PrideHike in the beautiful Kaisergebirge! I'll be chatting all weekend about the changing alpine environment and how that impacts us ~all~, especially those of us whose happy place is up in the thin air. Thanks to Osprey (packs) Europe for (1/2)
Check it out!
#GlobalWarming is pushing the world closer to tipping points, risking irreversible changes. A Joint Research Centre policy brief, with PIKs @donovanpdennis.com & Sina Loriani, explains the need for anticipatory governance to tackle systemic risks.
joint-research-centre.ec.europa.eu/jrc-news-and...
joint-research-centre.ec.europa.eu/jrc-news-and...
Earth system tipping points are a threat to Europe – how to get prepared?
Global warming is bringing the world closer to crossing tipping points, setting a path to events that could permanently alter how the planet works, within years, decades or centuries.
joint-research-centre.ec.europa.eu
March 11, 2025 at 7:32 AM
Check it out!
This quote at my SBahn stop hitting differently this week.
“What a time it is when talking about trees is almost a crime. Because it involves silence about so many misdeeds!”
How I feel coming and going talking about clim. change/Michelangelo, trying to ignore the rising tide in my former home.
“What a time it is when talking about trees is almost a crime. Because it involves silence about so many misdeeds!”
How I feel coming and going talking about clim. change/Michelangelo, trying to ignore the rising tide in my former home.
March 5, 2025 at 8:29 AM
This quote at my SBahn stop hitting differently this week.
“What a time it is when talking about trees is almost a crime. Because it involves silence about so many misdeeds!”
How I feel coming and going talking about clim. change/Michelangelo, trying to ignore the rising tide in my former home.
“What a time it is when talking about trees is almost a crime. Because it involves silence about so many misdeeds!”
How I feel coming and going talking about clim. change/Michelangelo, trying to ignore the rising tide in my former home.
Following a workshop on Earth system #tippingpoints at the @ec.europa.eu's Joint Research Centre, @pik-potsdam.bsky.social colleagues and I have contributed to a policy brief with recommendations for how the EU can/should move forward--check it out!: publications.jrc.ec.europa.eu/repository/h...
Earth System Tipping Points are a threat to Europe
With global warming rapidly approaching 1.5 °C, widespread and systemic risks of crossing several Earth System Tipping Points (ESTP) are becoming an emerging security threat for Europe. Stepping up in...
publications.jrc.ec.europa.eu
February 28, 2025 at 11:20 AM
Following a workshop on Earth system #tippingpoints at the @ec.europa.eu's Joint Research Centre, @pik-potsdam.bsky.social colleagues and I have contributed to a policy brief with recommendations for how the EU can/should move forward--check it out!: publications.jrc.ec.europa.eu/repository/h...
Getting a bit teary on the train listening to two elderly gays signing up for new life insurance policies and making each other the beneficiaries. Something really beautiful in the mundanity of that. Speaking a mix of English, Swedish, German, and French. Stunning.
January 28, 2025 at 11:46 AM
Getting a bit teary on the train listening to two elderly gays signing up for new life insurance policies and making each other the beneficiaries. Something really beautiful in the mundanity of that. Speaking a mix of English, Swedish, German, and French. Stunning.
Did a thing last week🎓. Really thought I wouldve left it before that day came tbh.
Can remember the moment I was accepted to a PhD, 21, totally gobsmacked. The day I left Boston and that first PhD, my supervisor in the Times for harassing his students in Antarctica. The first time w/ my 🌈 pin(1/2)
Can remember the moment I was accepted to a PhD, 21, totally gobsmacked. The day I left Boston and that first PhD, my supervisor in the Times for harassing his students in Antarctica. The first time w/ my 🌈 pin(1/2)
January 21, 2025 at 10:36 AM
Did a thing last week🎓. Really thought I wouldve left it before that day came tbh.
Can remember the moment I was accepted to a PhD, 21, totally gobsmacked. The day I left Boston and that first PhD, my supervisor in the Times for harassing his students in Antarctica. The first time w/ my 🌈 pin(1/2)
Can remember the moment I was accepted to a PhD, 21, totally gobsmacked. The day I left Boston and that first PhD, my supervisor in the Times for harassing his students in Antarctica. The first time w/ my 🌈 pin(1/2)
Hello world — with little luck, I’m looking for a paper that summarises the history of study of climate change, particularly with respect to glaciers. I.e., what did researchers in the early 20th century think caused the kind of variability that led to terminus position changes?
Suggestions?
Suggestions?
January 9, 2025 at 11:39 AM
Hello world — with little luck, I’m looking for a paper that summarises the history of study of climate change, particularly with respect to glaciers. I.e., what did researchers in the early 20th century think caused the kind of variability that led to terminus position changes?
Suggestions?
Suggestions?
Had a great time at this year’s TIPMIP meeting with @docaharper.bsky.social and so many others! We had a night at the Maryland Science Center and a keynote by Sen. Sheldon Whitehouse as well as many many productive science conversations 😊.
December 8, 2024 at 12:19 AM
Had a great time at this year’s TIPMIP meeting with @docaharper.bsky.social and so many others! We had a night at the Maryland Science Center and a keynote by Sen. Sheldon Whitehouse as well as many many productive science conversations 😊.
Just spent the last two weeks crisscrossing the U.S. West with my TIPMIP colleague to talk climate and Earth system tipping points. We’ve learned so much about the state of tipping research in the U.S.!
Looking forward to our next stops on the East coast before our TIPMIP General Assembly and AGU!
Looking forward to our next stops on the East coast before our TIPMIP General Assembly and AGU!
December 1, 2024 at 6:34 AM
Just spent the last two weeks crisscrossing the U.S. West with my TIPMIP colleague to talk climate and Earth system tipping points. We’ve learned so much about the state of tipping research in the U.S.!
Looking forward to our next stops on the East coast before our TIPMIP General Assembly and AGU!
Looking forward to our next stops on the East coast before our TIPMIP General Assembly and AGU!
Happening today at Lettretage in Berlin! Join for a discussion of "The Shining Mountains" by Alix Christie, and a short warm-up reading by yours truly :).
Veteranenstr. 21, doors open at 19:00, readings begin 19:30.
Veteranenstr. 21, doors open at 19:00, readings begin 19:30.
December 11, 2023 at 10:38 AM
Happening today at Lettretage in Berlin! Join for a discussion of "The Shining Mountains" by Alix Christie, and a short warm-up reading by yours truly :).
Veteranenstr. 21, doors open at 19:00, readings begin 19:30.
Veteranenstr. 21, doors open at 19:00, readings begin 19:30.
pro tip: if you power walk to work listening to an aerobics playlist wearing a beige turtleneck, white high tops, and calvins, you kinda feel like your mom in the eighties which is fun.
November 21, 2023 at 9:05 AM
pro tip: if you power walk to work listening to an aerobics playlist wearing a beige turtleneck, white high tops, and calvins, you kinda feel like your mom in the eighties which is fun.
Berlin is cool cuz you can go from this and this to that and that without an outfit change.
November 20, 2023 at 7:55 PM
Berlin is cool cuz you can go from this and this to that and that without an outfit change.
Could also just eat the rich instead.
🆕Taxing land instead of capital could reduce the widening gap between rich & poor in societies, finds new PIK study with PIK Director Ottmar #Edenhofer & @maxfranks.bsky.social . The benefits: less speculation in real estate, more funding for public transport.
www.pik-potsdam.de/en/news/late...
www.pik-potsdam.de/en/news/late...
November 14, 2023 at 11:43 PM
Could also just eat the rich instead.
Join us on 11. Dec. at Lettretage in Berlin for a Montana-filled evening :)!
November 14, 2023 at 9:55 AM
Join us on 11. Dec. at Lettretage in Berlin for a Montana-filled evening :)!
Welcome to Bluesky @flisaacs.bsky.social! Was going through some old photos and came across this evergreen photo.... Hope to see you sometime soon here in Potsdam :)... also spotted @juliusgarbe.bsky.social (who I'm sure would be just as excited to see you too). What a morning :) :) :)
October 20, 2023 at 3:19 PM
Welcome to Bluesky @flisaacs.bsky.social! Was going through some old photos and came across this evergreen photo.... Hope to see you sometime soon here in Potsdam :)... also spotted @juliusgarbe.bsky.social (who I'm sure would be just as excited to see you too). What a morning :) :) :)
Reposted by Donovan Dennis
Our community here is growing which is really nice. GFZ scientists we found so far (actually, they found us here...) are @bstein.bsky.social (modelling the deep underground in Earth's mantle etc.), @lianegbenning.bsky.social (researching ice algae, e.g. on Greenland, and other super cool stuff 1/n
October 19, 2023 at 10:35 AM
Our community here is growing which is really nice. GFZ scientists we found so far (actually, they found us here...) are @bstein.bsky.social (modelling the deep underground in Earth's mantle etc.), @lianegbenning.bsky.social (researching ice algae, e.g. on Greenland, and other super cool stuff 1/n
Reposted by Donovan Dennis
Even if critical #temperature thresholds are temporarily crossed by up to 6.5 degrees Celsius until 2100, a possible #tipping of the #Greenland ice sheet could be prevented, a new "Nature" study with PIK scientist Niklas Boers finds: www.pik-potsdam.de/en/news/late...
October 18, 2023 at 3:27 PM
Even if critical #temperature thresholds are temporarily crossed by up to 6.5 degrees Celsius until 2100, a possible #tipping of the #Greenland ice sheet could be prevented, a new "Nature" study with PIK scientist Niklas Boers finds: www.pik-potsdam.de/en/news/late...