Our research vessel Polarstern is back in Bremerhaven after a long journey. ⚓️❤️ During the expedition, researchers took measurements in the seawater north of Greenland. Initial results show that there is a current band that transports warm Atlantic water from the Arctic Ocean southward. 🌊 📸Nicolaus

AWI climate researcher Markus Rex receives the NOMIS Award 2025. 🏆👏 The award recognizes his leadership of the MOSAiC expedition, in which scientists from 20 countries researched the interaction between ice, ocean, atmosphere, and ecosystem in the Arctic. Photo: NOMIS Foundation / David Biedert

New #AWI study shows how sustainable management of #krill in the Southern Ocean can work. The concept for managing krill stocks involves close cooperation with fisheries. #Antarctica #CCAMLR www.awi.de/en/about-us/... Photo: Carsten Pape

A new review study shows the invisible transport pathways for #iron through #hydrothermal plumes. More on Iron’s Irony here ➡️ www.marum.de/en/Iron-sIro... @icbm-uol.bsky.social #ConstructorUniversity @geomarkiel.bsky.social @awi.de @marumunibremen.bsky.social

🐧 Is #Antarctica trying to talk to us? As warming temperatures chip away at the continent’s ice shelves, #WHOI scientists are listening for signs of unstable ice using acoustic data collected by the @awi.de 🔊 Listen in with Oceanus: go.whoi.edu/polarstethoscope

AWI researchers have mapped 19,000 driftwood in Alaska and northwestern Canada for the first time. The data will help to better understand coastal processes, carbon storage and environmental changes such as storm surges and erosion. www.awi.de/en/about-us/... Photo: Carl Stadie

The heart of the new Polarstern ❤️🚢 Together with our shipyard TKMS, we have reached a milestone in the construction of the new Polarstern: the new propulsion unit for the icebreaker has been finalized and the corresponding contracts have been signed. www.awi.de/en/about-us/...

Can you spot the Polarstern amid the ice floes of the Arctic? 🧊A satellite image shows, that we are just a pixel amidst ice floes (light grey) and open water (dark). Polarstern appears as a bright spot in the image because it reflects electromagnetic radiation more strongly than its surroundings.

Unique concept for observing Arctic sea ice successfully implemented: AWI scientists were able to study different types of sea ice in parallel during the Polarstern expedition “CONTRASTS.” 🧊 www.awi.de/en/about-us/... Photo: Evgenii Salganik

Excited to share that senior postdoc Sören Häfker @awi.de just secured one of the highly competitive @erc.europa.eu ‬ @ercgrantees.bsky.social #ERCStG grants to pioneer work decoding the molecular clockwork driving rhythmicity of krill in the #marine #foodweb! More on BICLOPS here: bit.ly/4lYpBq0

Johann Klages gave a plenary talk on Antarctic research at #ICP15 in Bangalore, India. A once-in-a-lifetime honor for groundbreaking insights. AWI colleagues from Marine Geology and Marine Biogeochemistry also presented on their diverse projects.👏 Photos: personal

Lukas Weis, who is spending the winter at Neumayer Station III in Antarctica, explains in the AtkaXpress blog how he takes the most beautiful photos of the polar night. #AureliaBorealis blogs.helmholtz.de/atkaxpress/e...

Hi! I’m ARIEL, an L-band microwave radiometer 📡, and this is my little buddy Sebastian (the pulka 🛷). Together, we traveled across 3 Arctic ice stations ❄️ to uncover the invisible (aka microwave) secrets of ever-changing summer sea ice and its thickness on the @awi.de CONTRASTS #expedition 🧊.

Can the color of melt ponds reveal the sea-ice thickness below? 🧊 And can we measure this from #space? 🛰️ On the @awi.de CONTRASTS #expedition, we’re testing this with a 200+ band hyperspectral camera and co-located ice thickness measurements for a large variety of #Arctic ponds.

Our icebreaker Polarstern is currently in the Arctic, where it has met up with our polar aircraft Polar 6 for the second time. The joint measurements enable researchers to place their data in an even broader context.🧊 More information in the Polarstern app: follow-polarstern.awi.de/blog/21-08-2...

A very successful Perma-X campaign is ending now and both the Polar-5 and the team left Inuvik. We are looking forward to analyze a mountain of >30 TB of new data collected to better understand how fast #permafrost thaws and subsides, coasts erode, and lakes and vegetation change. @awi.de

@scientistscoa.bsky.social invites you to a press conference: ⏰ Tuesday 12/08/25, 15.30 CEST 📍 INC Press Room XXVII, Building E & online Seating will be prioritized for media & delegations. Media can register to join virtually & submit questions: lnkd.in/eW2Mnanz 💻 Live broadcast: lnkd.in/ed99he3j

🎢 So glad, to be in this #INC5.2 roller coaster journey together again: Annika Jahnke, @ufz.de and I, @awi.de ( @helmholtz.de) accompanying the German delegation and @scientistscoa.bsky.social. Have we reached a breaking point in the negotiations for a global #PlasticsTreaty?! 🌎 ⚕️ 🌡️ 🐙

Grateful to civil society who puts itself out in a powerful silent action as delegates enter the stock-taking plenary highlighting the urgent need for an ambitious #PlasticsTreaty for human & planetary health & climate including provisions on #plastic chemicals and production levels. @awi.de

AWI Vice Director Dr. Uwe Nixdorf, has been awarded with the "Council of Managers of National Antarctic Programs" (COMNAP) Medal. 🏆🎉 This international honor recognizes outstanding contributions to the promotion and support of #Antarctic research. Congratulations!

The second part of the 5th round of negotiations for a global #PlasticsTreaty (#INC5.2) has started! All hands on deck, let’s do this! May ambition rule: for human and planetary health and our climate ! 💪🌏🐟 #plastic @awi.de

🧊✈️ On Sunday, Polar 6 launched this year's IceBird summer campaign by flying from Longyearbyen to Station Nord, a Danish military base in Greenland. The mission is to track changes to the sea ice and to support the CONTRASTS expedition aboard the Polarstern research vessel.

Our team member Dmitry is onboard @awi.de Polarstern on the #CONTRASTS expedition in the #Arctic Ocean. Part of the work is to deploy a number of autonomous systems to track the movement of the #seaice and how it is melting. Data will be made accessible on the @meereisportal.bsky.social data portal

The new Emmy Noether Group, 'Artemics', at the AWI is investigating how waves stir up the Arctic Ocean. Using advanced climate models, the team aims to investigate how waves that form inside the ocean affect the Arctic sea ice. www.awi.de/en/about-us/... Photo: S. Hendricks

What is life like in the darkness of the polar night? The overwintering team at #Neumayer Station III in #Antarctica share their experiences on the #AtkaXpress blog. blogs.helmholtz.de/atkaxpress/e... Photo: Lukas Weis

AWI scientists examine 1.2 million-year-old ice: An international research team is currently analyzing the oldest ice core in the world. In January, the research team brought the ice core back from Antarctica. 🧊 Photo: Kerstin Rolfes

Live view from RV Polarstern 🌊 video.panomax.com/cams/10085/v... data.meereisportal.de/relaunch/con...

Happy to contribute #eDNA sequences from our #Arctic FRAM Observatory to GRUMP, a microbial database covering the world ocean 🌊 many thanks @jedfuhrman.bsky.social & @jcmcnch.bsky.social for the invitation to join! @awi.de @mpimarinemicrobio.bsky.social @chrbienhold.bsky.social

Today, the Polarstern sets off for the Arctic: From Tromsø in Norway, our research icebreaker sets off on the "Contrasts" expedition. Over the next two months, the international research team on board wants to investigate why the sea ice is melting and what consequences this has.🧊 Photo: F.Mehrtens

Excited to see first video projects with @awi.de published! Here you can see simulated past extreme weather events in different climate scenarios to better understand the impact of climate change. More soon! @ecmwf.int @climatenews.bsky.social @insideclimatenews.org

The overwintering at the Franco-German research station #AWIPEV in Ny-Ålesund, Svalbard, also celebrated midsummer last weekend! 🥳 Photo: Esther Horvath

New paper incl. data from our @awi.de #HAUSGARTEN observatory indicate 'Decadal change in deep-ocean dissolved 🧪oxygen in the North #Atlantic Ocean and North #Pacific Ocean'. Levels deceased in the #Arctic, too, but this was't (yet) statistically significant. www.sciencedirect.com/science/arti...

The call for our 2026 Postdoc Cohort is now open. We offer 4 full-time positions. Apply until August 24th. hifmb.de/jobs Please spread the word. #postdoc #jobsinscience #marinebiodiversity #antarctica @awi.de @hillebr1.bsky.social @ibaums.bsky.social @thilogross.bsky.social @merenbey.bsky.social 🦑

No sun. No soil. Still: over a ton of veggies in Antarctica. @dlr-en.bsky.social & @awi.de show how food production could work in extreme environments. 🔗 Find out how: t1p.de/l9799 #Helmholtz30

Krill fishing in the Antarctic: overlaps with consequences 🐋🌊 New AWI study shows: Acoustic data reveal when and where fishing vessels compete with whales and penguins for krill in the Southern Ocean – and what this entails for the ecosystem www.awi.de/en/about-us/... Photos: S. Menze

Tiny bumps in the ice can mess with Antarctic climate records. The AWI @theAGU paper shows how — and was just featured! 🎉

🚢 Happy Sunday from our research icebreaker Polarstern, which is currently ploughing through the 🧊 ice for our annual sampling campaign at HAUSGARTEN observatory to assess the impact of #ClimateChange in the #Arctic #DeepSea 🦑. (🎥 @awi.de Deep-Sea Group) @helmholtz.de

How does the overwintering team at Neumayer Station III in #Antarctica obtain food? The most important thing is probably planning and stockpiling. Because the Polarstern only comes to the ice shelf edge once a year and supplies the station with food. 🍎🥖 blogs.helmholtz.de/atkaxpress/e... 📸 L.Weis

The 2004 tsunami showed us the urgent need for an early warning system. @gfz.bsky.social, in collaboration with @dlr-en.bsky.social, @geomarkiel.bsky.social, @awi.de and Hereon, created GITEWS – now known as InaTEWS. And the research goes on. 🔗 Learn more about it here: t1p.de/43v62 #Helmholtz30

Happy Pride Month! 🏳️‍🌈 At AWI, we are committed to diversity and equality. Pride Month in June reminds us how important it is to strengthen an open and respectful society, both in science and in everyday life. We embrace diversity every day. Photo: Laura Oldenburg

#PlasticCredits, are being promoted as an innovative way of addressing plastic pollution. A new study with AWI participation now shows that such compensation programs make the plastic problem worse - not better. Photo: @melaniebergma18.bsky.social

Our icebreaker Polarstern has left Bremerhaven for the Arctic. The first destination is the “AWI House Garden”.🪼🌱 In this deep-sea observatory between Spitsbergen and Greenland, the 52 scientists will investigate how the ecosystems of the Arctic deep sea react to climate change.

⚓️ Off she goes again: this morning, @awi.de‘s research icebreaker Polarstern 🛳️disembarked in #Bremerhaven for another gardening season at our HAUSGARTEN observatory in the #Arctic #DeepSea! 🌊 Safe travels 🧊and petri heil to all on board! 📸 F. Tulatz More on HAUSGARTEN ⬇️ www.awi.de/ueber-uns/se...

Today is the 13th German Diversity Day! AWI Interim Director Prof. Dr. Maarten Boersma is committed to diversity: “Successful research requires diversity at all levels. That's why we actively create an environment in which different perspectives are welcome - and specifically encouraged.

Penguin poop helps #Antarctica stay cool 🐧

A little belated post to share the latest article by Wenqin Zhuo together with our @awi.de team of "storyliners"! This time investigating cold extremes. Read in @natureportfolio.nature.com: doi.org/10.1038/s416...

The North Sea is gradually warming up, with more frequent, intense heat events. #AWI researchers show: These changes significantly impact plankton. Heat waves especially intensify shifts in species composition, often to the disadvantage of many groups. www.awi.de/en/about-us/... Photo: B. Beszteri

Antje Boetius, former Director of the #AWI, has been elected a Fellow of the Royal Society. Congratulations! 💐

New @natcomms.nature.com publication on how sensitively does organic carbon stored in soils react to changes in temperature and humidity. Researchers from @marumunibremen.bsky.social and @awi.de find an answer to that question with an unconventional approach. More here ➡️ www.marum.de/en/Rising-te...

Why embed a research vessel in Arctic ice? To study the climate where it is changing most rapidly. #MOSAiC was the largest Arctic expedition to date. Led by @awi.de, with contributions from @dlr-en.bsky.social, @geomarkiel.bsky.social and @gfz.bsky.social. Learn more: t1p.de/4fwt0 #Helmholtz30