Heike Zimmermann
@heikezimm.bsky.social
Paleoecologist, loves the outdoors, 🇬🇱, #polar regions, sleeping in a 🏕, #eDNA, #seaice, #aDNA 🧬 from #marine sediments, plants and #protists, #GEUS
Reposted by Heike Zimmermann
Your 'moment of doom' for Nov. 25, 2025 ~ and he is us
"the species extinction rate is estimated to be between 1 000 and 10 000 times higher than natural extinction rates – the rate of species extinctions that would occur if we humans were not around.”
www.2oceansvibe.com/environment-...
"the species extinction rate is estimated to be between 1 000 and 10 000 times higher than natural extinction rates – the rate of species extinctions that would occur if we humans were not around.”
www.2oceansvibe.com/environment-...
Gone, Gone...And Gone: The IUCN Drops Its 2025 Species Extinction List
Yes, this grim roll call of vanished species comes with a side serving of climate chaos and human meddling.
www.2oceansvibe.com
November 25, 2025 at 1:21 PM
Your 'moment of doom' for Nov. 25, 2025 ~ and he is us
"the species extinction rate is estimated to be between 1 000 and 10 000 times higher than natural extinction rates – the rate of species extinctions that would occur if we humans were not around.”
www.2oceansvibe.com/environment-...
"the species extinction rate is estimated to be between 1 000 and 10 000 times higher than natural extinction rates – the rate of species extinctions that would occur if we humans were not around.”
www.2oceansvibe.com/environment-...
“All eyes on Greenland”
The #Greenland Science Conference is about to start. Looking forward to many interesting presentations and to giving one myself about using #sedaDNA 🧬 to reconstruct past #marine ecosystems. 🌊🐳🦠🦀🐚
We‘ll look to the past for a better future!
#aDNA
#GreenlandScienceWeek
The #Greenland Science Conference is about to start. Looking forward to many interesting presentations and to giving one myself about using #sedaDNA 🧬 to reconstruct past #marine ecosystems. 🌊🐳🦠🦀🐚
We‘ll look to the past for a better future!
#aDNA
#GreenlandScienceWeek
November 12, 2025 at 10:06 AM
“All eyes on Greenland”
The #Greenland Science Conference is about to start. Looking forward to many interesting presentations and to giving one myself about using #sedaDNA 🧬 to reconstruct past #marine ecosystems. 🌊🐳🦠🦀🐚
We‘ll look to the past for a better future!
#aDNA
#GreenlandScienceWeek
The #Greenland Science Conference is about to start. Looking forward to many interesting presentations and to giving one myself about using #sedaDNA 🧬 to reconstruct past #marine ecosystems. 🌊🐳🦠🦀🐚
We‘ll look to the past for a better future!
#aDNA
#GreenlandScienceWeek
Ever wondered what DNA looks like? 🧬
Come get your hands gooey and geekey at #Qaagitsi science festival in #Nuuk - we‘ll be extracting #DNA straight from bananas 🍌
It‘s science you can literally pull out with your fingers!
Stop by our #GEUS stand this Friday and unleash your inner biologist!🧪🧑🔬👨🔬🔥
Come get your hands gooey and geekey at #Qaagitsi science festival in #Nuuk - we‘ll be extracting #DNA straight from bananas 🍌
It‘s science you can literally pull out with your fingers!
Stop by our #GEUS stand this Friday and unleash your inner biologist!🧪🧑🔬👨🔬🔥
November 9, 2025 at 3:02 PM
Reposted by Heike Zimmermann
8 km of retreat in just 2 months...! 😱
The fastest glacier retreat ever recorded in modern history, at Hektoria Glacier (Antarctic peninsula) 📈🔥
www.nature.com/articles/s41...
Via Etienne Berthier
The fastest glacier retreat ever recorded in modern history, at Hektoria Glacier (Antarctic peninsula) 📈🔥
www.nature.com/articles/s41...
Via Etienne Berthier
November 4, 2025 at 8:54 AM
8 km of retreat in just 2 months...! 😱
The fastest glacier retreat ever recorded in modern history, at Hektoria Glacier (Antarctic peninsula) 📈🔥
www.nature.com/articles/s41...
Via Etienne Berthier
The fastest glacier retreat ever recorded in modern history, at Hektoria Glacier (Antarctic peninsula) 📈🔥
www.nature.com/articles/s41...
Via Etienne Berthier
Reposted by Heike Zimmermann
1️⃣ Iceland was famously one of Earth’s last mosquito-free nations—until now. Climate change has delivered a tiny but powerful wake-up call: the first-ever mosquitoes have arrived on the island. Read the full story:
scienceagenda.net/blog/mosquit...
scienceagenda.net/blog/mosquit...
Mosquitoes in Iceland: Climate Change's Arctic Milestone » Science Agenda
Mosquitoes in Iceland were discovered in October 2025 after record heat, ending the nation’s mosquito-free status.
scienceagenda.net
October 31, 2025 at 9:18 PM
1️⃣ Iceland was famously one of Earth’s last mosquito-free nations—until now. Climate change has delivered a tiny but powerful wake-up call: the first-ever mosquitoes have arrived on the island. Read the full story:
scienceagenda.net/blog/mosquit...
scienceagenda.net/blog/mosquit...
Reposted by Heike Zimmermann
🚨Job alert🚨
We’re seeking a highly organized & detail-oriented professional to join our team as a SODCO Chem Tech.
Responsibilities include prep lab containers for seagoing expeditions, mobilization/demobilization, sailing to operate instruments at sea...
tamus.wd1.myworkdayjobs.com/TAMU_Externa...
We’re seeking a highly organized & detail-oriented professional to join our team as a SODCO Chem Tech.
Responsibilities include prep lab containers for seagoing expeditions, mobilization/demobilization, sailing to operate instruments at sea...
tamus.wd1.myworkdayjobs.com/TAMU_Externa...
October 1, 2025 at 8:39 PM
🚨Job alert🚨
We’re seeking a highly organized & detail-oriented professional to join our team as a SODCO Chem Tech.
Responsibilities include prep lab containers for seagoing expeditions, mobilization/demobilization, sailing to operate instruments at sea...
tamus.wd1.myworkdayjobs.com/TAMU_Externa...
We’re seeking a highly organized & detail-oriented professional to join our team as a SODCO Chem Tech.
Responsibilities include prep lab containers for seagoing expeditions, mobilization/demobilization, sailing to operate instruments at sea...
tamus.wd1.myworkdayjobs.com/TAMU_Externa...
Reposted by Heike Zimmermann
Die Meere heizen sich auf, verlieren Sauerstoff und versauern, der Meeresspiegel steigt, die Meeresökosysteme sind immer stärker unter Druck.
Wir leben auf einem Ozeanplaneten, und was mit unseren Meeren geschieht, wirkt sich bereits auf uns an Land aus.
taz.de/Weltmeere-Hi...
Wir leben auf einem Ozeanplaneten, und was mit unseren Meeren geschieht, wirkt sich bereits auf uns an Land aus.
taz.de/Weltmeere-Hi...
Weltmeere: Hitzewellen in den Ozeanen
Die Meere erwärmen sich immer schneller, Nord- und Ostsee ganz besonders. Das geht aus dem Statusbericht des Copernicus Marine Service hervor.
taz.de
October 1, 2025 at 11:44 AM
Die Meere heizen sich auf, verlieren Sauerstoff und versauern, der Meeresspiegel steigt, die Meeresökosysteme sind immer stärker unter Druck.
Wir leben auf einem Ozeanplaneten, und was mit unseren Meeren geschieht, wirkt sich bereits auf uns an Land aus.
taz.de/Weltmeere-Hi...
Wir leben auf einem Ozeanplaneten, und was mit unseren Meeren geschieht, wirkt sich bereits auf uns an Land aus.
taz.de/Weltmeere-Hi...
Are you interested in how climate change is reshaping #Arctic #marine ecosystems and if the risks associated with harmful algal blooms and marine #phycotoxins is increasing? 🧬❄️🌊
Come, join us in beautiful and vibrant Copenhagen -
2 weeks left to apply!
#protistsonsky #ancientDNA #HAB
Come, join us in beautiful and vibrant Copenhagen -
2 weeks left to apply!
#protistsonsky #ancientDNA #HAB
📣We seek a talented and enthusiastic postdoc - 3 yrs
Join our team at #GEUS, and use environmental genomics applied to marine sediment cores from the #Arctic to decipher past dynamics of toxic #phytoplankton species. 🌊❄️🧬
#protistsonsky #ancientDNA #PHATE
candidate.hr-manager.net/ApplicationI...
Join our team at #GEUS, and use environmental genomics applied to marine sediment cores from the #Arctic to decipher past dynamics of toxic #phytoplankton species. 🌊❄️🧬
#protistsonsky #ancientDNA #PHATE
candidate.hr-manager.net/ApplicationI...
Postdoc in marine environmental DNA/sedimentary ancient DNA
The Department of Glaciology and Climate at the Geological Survey of Denmark and Greenland (GEUS) is looking for a talented and enthusiastic postdoctoral resear
candidate.hr-manager.net
September 30, 2025 at 5:49 AM
Are you interested in how climate change is reshaping #Arctic #marine ecosystems and if the risks associated with harmful algal blooms and marine #phycotoxins is increasing? 🧬❄️🌊
Come, join us in beautiful and vibrant Copenhagen -
2 weeks left to apply!
#protistsonsky #ancientDNA #HAB
Come, join us in beautiful and vibrant Copenhagen -
2 weeks left to apply!
#protistsonsky #ancientDNA #HAB
Reposted by Heike Zimmermann
Mein Interview mit Dunja Hayali beim heute journal vom Extremwetterkongress in Hamburg.
Steuern wir auf 3 Grad globale Erwärmung zu (das wären 5-6 Grad in Deutschland)? Und was würde das bedeuten? Haben die Klimaforscher klar genug kommuniziert?
www.zdfheute.de/panorama/wet...
Steuern wir auf 3 Grad globale Erwärmung zu (das wären 5-6 Grad in Deutschland)? Und was würde das bedeuten? Haben die Klimaforscher klar genug kommuniziert?
www.zdfheute.de/panorama/wet...
Klimawandel: Drei-Grad-Erderwärmung "unvorstellbare Katastrophe"
Der Klimawandel schreitet immer schneller voran, derweil hält US-Präsident Trump wenig von der Energiewende. Warum Forscher noch Hoffnung haben.
www.zdfheute.de
September 26, 2025 at 3:35 PM
Mein Interview mit Dunja Hayali beim heute journal vom Extremwetterkongress in Hamburg.
Steuern wir auf 3 Grad globale Erwärmung zu (das wären 5-6 Grad in Deutschland)? Und was würde das bedeuten? Haben die Klimaforscher klar genug kommuniziert?
www.zdfheute.de/panorama/wet...
Steuern wir auf 3 Grad globale Erwärmung zu (das wären 5-6 Grad in Deutschland)? Und was würde das bedeuten? Haben die Klimaforscher klar genug kommuniziert?
www.zdfheute.de/panorama/wet...
Reposted by Heike Zimmermann
Last month's total #Arctic sea ice volume averaged the 3rd lowest on record for the month of August. This was about 72% below 1979 levels and 54% below the 1979-2024 August average.
More at zacklabe.com/arctic-sea-i.... Data from PIOMAS. 🥼❄️🌊
More at zacklabe.com/arctic-sea-i.... Data from PIOMAS. 🥼❄️🌊
September 12, 2025 at 11:47 AM
Last month's total #Arctic sea ice volume averaged the 3rd lowest on record for the month of August. This was about 72% below 1979 levels and 54% below the 1979-2024 August average.
More at zacklabe.com/arctic-sea-i.... Data from PIOMAS. 🥼❄️🌊
More at zacklabe.com/arctic-sea-i.... Data from PIOMAS. 🥼❄️🌊
Reposted by Heike Zimmermann
☠️🧬 2-yr Postdoc in in Genomic Simulations and Extinction Risk Modelling!
Let's figure out the Genomic signs of Extinction @DTU in Denmark.
Start: Feb 2026 (flexible)
Application deadline: 24 Oct 2025
For details click here: tinyurl.com/BioExtPD
Reposts appreciated 😁
Let's figure out the Genomic signs of Extinction @DTU in Denmark.
Start: Feb 2026 (flexible)
Application deadline: 24 Oct 2025
For details click here: tinyurl.com/BioExtPD
Reposts appreciated 😁
September 12, 2025 at 11:52 AM
☠️🧬 2-yr Postdoc in in Genomic Simulations and Extinction Risk Modelling!
Let's figure out the Genomic signs of Extinction @DTU in Denmark.
Start: Feb 2026 (flexible)
Application deadline: 24 Oct 2025
For details click here: tinyurl.com/BioExtPD
Reposts appreciated 😁
Let's figure out the Genomic signs of Extinction @DTU in Denmark.
Start: Feb 2026 (flexible)
Application deadline: 24 Oct 2025
For details click here: tinyurl.com/BioExtPD
Reposts appreciated 😁
Reposted by Heike Zimmermann
Did you know tiny algae can "skate" within Arctic sea ice? ⛸️ Our new study in @pnas.org reveals the secret life of ice diatoms: they are actively gliding to navigate the ice! This adds a new dimension to the sea ice ecosystem, revealing an active, dynamic ecological niche. @prakashlab.bsky.social
September 10, 2025 at 4:48 AM
Did you know tiny algae can "skate" within Arctic sea ice? ⛸️ Our new study in @pnas.org reveals the secret life of ice diatoms: they are actively gliding to navigate the ice! This adds a new dimension to the sea ice ecosystem, revealing an active, dynamic ecological niche. @prakashlab.bsky.social
A must-read for policy makers!
September 7, 2025 at 9:51 PM
A must-read for policy makers!
📣We seek a talented and enthusiastic postdoc - 3 yrs
Join our team at #GEUS, and use environmental genomics applied to marine sediment cores from the #Arctic to decipher past dynamics of toxic #phytoplankton species. 🌊❄️🧬
#protistsonsky #ancientDNA #PHATE
candidate.hr-manager.net/ApplicationI...
Join our team at #GEUS, and use environmental genomics applied to marine sediment cores from the #Arctic to decipher past dynamics of toxic #phytoplankton species. 🌊❄️🧬
#protistsonsky #ancientDNA #PHATE
candidate.hr-manager.net/ApplicationI...
Postdoc in marine environmental DNA/sedimentary ancient DNA
The Department of Glaciology and Climate at the Geological Survey of Denmark and Greenland (GEUS) is looking for a talented and enthusiastic postdoctoral resear
candidate.hr-manager.net
September 5, 2025 at 11:58 AM
📣We seek a talented and enthusiastic postdoc - 3 yrs
Join our team at #GEUS, and use environmental genomics applied to marine sediment cores from the #Arctic to decipher past dynamics of toxic #phytoplankton species. 🌊❄️🧬
#protistsonsky #ancientDNA #PHATE
candidate.hr-manager.net/ApplicationI...
Join our team at #GEUS, and use environmental genomics applied to marine sediment cores from the #Arctic to decipher past dynamics of toxic #phytoplankton species. 🌊❄️🧬
#protistsonsky #ancientDNA #PHATE
candidate.hr-manager.net/ApplicationI...
Reposted by Heike Zimmermann
Towards a trait-based framework for protist ecology and evolution www.cell.com/trends/micro... #jcampubs
Towards a trait-based framework for protist ecology and evolution
Protists comprise the vast majority of eukaryotic genetic and functional diversity.
While they have traditionally been difficult to study due to their small size and
varied phenotypes, environmental s...
www.cell.com
September 4, 2025 at 1:17 PM
Towards a trait-based framework for protist ecology and evolution www.cell.com/trends/micro... #jcampubs
Reposted by Heike Zimmermann
👋Hey ice fans! We’re looking for a post-doctoral fellow to join our glaciology team! 👇
Call: candidate.hr-manager.net/ApplicationI...
Deadline: 30 Sep 2025
Call: candidate.hr-manager.net/ApplicationI...
Deadline: 30 Sep 2025
September 4, 2025 at 6:31 PM
👋Hey ice fans! We’re looking for a post-doctoral fellow to join our glaciology team! 👇
Call: candidate.hr-manager.net/ApplicationI...
Deadline: 30 Sep 2025
Call: candidate.hr-manager.net/ApplicationI...
Deadline: 30 Sep 2025
Reposted by Heike Zimmermann
New season.
New styles.
Buy more.
Buy cheap.
Move on.
Throw away.
The impact of ‘fast fashion’ is polluting land, rivers, seas and the air we breathe.
Consider the environmental footprint before purchasing. By making mindful choices, we can help #BeatPollution: www.unep.org/beatpollution/
New styles.
Buy more.
Buy cheap.
Move on.
Throw away.
The impact of ‘fast fashion’ is polluting land, rivers, seas and the air we breathe.
Consider the environmental footprint before purchasing. By making mindful choices, we can help #BeatPollution: www.unep.org/beatpollution/
August 31, 2025 at 1:34 PM
New season.
New styles.
Buy more.
Buy cheap.
Move on.
Throw away.
The impact of ‘fast fashion’ is polluting land, rivers, seas and the air we breathe.
Consider the environmental footprint before purchasing. By making mindful choices, we can help #BeatPollution: www.unep.org/beatpollution/
New styles.
Buy more.
Buy cheap.
Move on.
Throw away.
The impact of ‘fast fashion’ is polluting land, rivers, seas and the air we breathe.
Consider the environmental footprint before purchasing. By making mindful choices, we can help #BeatPollution: www.unep.org/beatpollution/
Reposted by Heike Zimmermann
I was shocked when I first saw these results from standard climate models used in IPCC reports: for high emissions, the Atlantic overturning circulation #AMOC shuts down in all 9 models that ran past 2100, and is well on the way to shutdown by 2100.
Our paper on that is out today.🧵
Our paper on that is out today.🧵
August 28, 2025 at 3:55 PM
I was shocked when I first saw these results from standard climate models used in IPCC reports: for high emissions, the Atlantic overturning circulation #AMOC shuts down in all 9 models that ran past 2100, and is well on the way to shutdown by 2100.
Our paper on that is out today.🧵
Our paper on that is out today.🧵
Reposted by Heike Zimmermann
New palaeo-PhD opportunity! Will you be the one to figure out the anatomy and function of fossil jawless fish? Come join the team! Application Deadline August 22nd, funding for UK student only (sorry)
www.findaphd.com/phds/project...
www.findaphd.com/phds/project...
July 31, 2025 at 9:40 AM
New palaeo-PhD opportunity! Will you be the one to figure out the anatomy and function of fossil jawless fish? Come join the team! Application Deadline August 22nd, funding for UK student only (sorry)
www.findaphd.com/phds/project...
www.findaphd.com/phds/project...
We proudly present the brand new GEUS sedimentary ancient DNA lab! We just finished setting up the lab after days of scrubbing, sweat, and teamwork! Huge shoutout to Clara S. Adsersen for bravely diving in and making it all happen — couldn’t have done it without you! 🧬💪✨ #LabLife #aDNA
July 28, 2025 at 5:17 PM
Reposted by Heike Zimmermann
New paper alert!
We have just published an open acces paper in Climate of the Past, that has dated lacustrine permafrost sediments from northeast Siberia to the last interglacial using luminescence dating.
doi.org/10.5194/cp-2...
We have just published an open acces paper in Climate of the Past, that has dated lacustrine permafrost sediments from northeast Siberia to the last interglacial using luminescence dating.
doi.org/10.5194/cp-2...
Newly dated permafrost deposits and their paleoecological inventory reveal an Eemian much warmer than today in Arctic Siberia
Abstract. In this study, we integrate geochronological, cryolithological, paleoecological, and modeling data to reconstruct the Last Interglacial (LIG) climate around the New Siberian Islands, reveali...
doi.org
July 9, 2025 at 10:01 AM
New paper alert!
We have just published an open acces paper in Climate of the Past, that has dated lacustrine permafrost sediments from northeast Siberia to the last interglacial using luminescence dating.
doi.org/10.5194/cp-2...
We have just published an open acces paper in Climate of the Past, that has dated lacustrine permafrost sediments from northeast Siberia to the last interglacial using luminescence dating.
doi.org/10.5194/cp-2...
Reposted by Heike Zimmermann
Detailed investigations of permafrost deposits in Arctic Siberia suggest a much warmer Last Interglacial than today for that region: new Study out by Schirrmeister and a larger international team of colleagues: doi.org/10.5194/cp-2...
Newly dated permafrost deposits and their paleoecological inventory reveal an Eemian much warmer than today in Arctic Siberia
Abstract. In this study, we integrate geochronological, cryolithological, paleoecological, and modeling data to reconstruct the Last Interglacial (LIG) climate around the New Siberian Islands, reveali...
doi.org
July 8, 2025 at 8:01 PM
Detailed investigations of permafrost deposits in Arctic Siberia suggest a much warmer Last Interglacial than today for that region: new Study out by Schirrmeister and a larger international team of colleagues: doi.org/10.5194/cp-2...
Reposted by Heike Zimmermann
Apply now: #PhD #position “Advancing environmental DNA (#eDNA) approaches to future-proof #environmental #monitoring of #aquatic #ecosystems” 🧬 🔎 🦐 🧪 🐟 (4 years position)
➡️ apply.refline.ch/673277/1268/...
Thanks for sharing to suitable candidates! @eawag.bsky.social
➡️ apply.refline.ch/673277/1268/...
Thanks for sharing to suitable candidates! @eawag.bsky.social
July 4, 2025 at 1:16 PM
Apply now: #PhD #position “Advancing environmental DNA (#eDNA) approaches to future-proof #environmental #monitoring of #aquatic #ecosystems” 🧬 🔎 🦐 🧪 🐟 (4 years position)
➡️ apply.refline.ch/673277/1268/...
Thanks for sharing to suitable candidates! @eawag.bsky.social
➡️ apply.refline.ch/673277/1268/...
Thanks for sharing to suitable candidates! @eawag.bsky.social
Reposted by Heike Zimmermann
Aarhus University seeks a tenure-track assistant professor in population genetics, comparative genomics, or bioinformatics for biodiversity research. More info: https://www.au.dk/om/stillinger/job/tenure-track-assistant-professor-in-biodiversity-research-using-genetics #job
Tenure-Track Assistant Professor in Biodiversity Research Using Genetics - Ledig stilling på Aarhus Universitet
Ledig stilling ved Center for Kvantitativ Genetik og Genomforskning, Aarhus, Aarhus Universitet
www.au.dk
June 26, 2025 at 2:46 PM
Aarhus University seeks a tenure-track assistant professor in population genetics, comparative genomics, or bioinformatics for biodiversity research. More info: https://www.au.dk/om/stillinger/job/tenure-track-assistant-professor-in-biodiversity-research-using-genetics #job
Reposted by Heike Zimmermann
As only Julian Aguon can tell, a story as beautifully told as it is devastating and inspiring. About how “Vanuatu, a South Pacific island nation on the frontlines of the climate crisis, is fighting for climate justice at the world’s highest court.”
www.rollingstone.com/politics/pol...
www.rollingstone.com/politics/pol...
The Fight for Climate Justice at the World Court
Vanuatu, a South Pacific island nation on the frontlines of the climate crisis, is fighting for climate justice at the world’s highest court.
www.rollingstone.com
June 28, 2025 at 3:08 AM
As only Julian Aguon can tell, a story as beautifully told as it is devastating and inspiring. About how “Vanuatu, a South Pacific island nation on the frontlines of the climate crisis, is fighting for climate justice at the world’s highest court.”
www.rollingstone.com/politics/pol...
www.rollingstone.com/politics/pol...