Reviewers, please understand why our experiments are missing measurements at the final time point 🐻‍❄️❄️🔬 @matehg.bsky.social

Svalbard 🐻‍❄️

Merci Montréal @goldschmidt-confer.bsky.social #ERC_SIESTA 🔬🌎❄️🧬🏔️🍁🇪🇺

Excited to see our article featured on the monthly cover of @plosbiology.org @drbradbrad.bsky.social @lmugeoumwelt.bsky.social

Some snaps from the field behind this new paper 🌊❄️🧬🔬 #ERC_SIESTA @mioceanologie.bsky.social @erc.europa.eu @cnrs-insu.bsky.social @cnrs-dr12.bsky.social @qmulsbbs.bsky.social @lmu.de

James Bradley@drbradbrad.bsky.social · 2mo ago

What happens to labile carbon when it reaches the Arctic seafloor? In our new paper led by Juan Carlos Trejos-Espeleta, we show how marine fungi efficiently assimilate DOC & promote C retention in Arctic fjord sediments Nice 🧵 from @ggomezsaez.bsky.social 👇 journals.plos.org/plosbiology/...

What happens to labile carbon when it reaches the Arctic seafloor? In our new paper led by Juan Carlos Trejos-Espeleta, we show how marine fungi efficiently assimilate DOC & promote C retention in Arctic fjord sediments Nice 🧵 from @ggomezsaez.bsky.social 👇 journals.plos.org/plosbiology/...

Fungi enhance microbial carbon retention in high Arctic fjord sediment

Fungi act as critical biological carbon storage reservoirs in soil ecosystems, but what about marine sediments? This study shows that marine fungi promote carbon storage in arctic fjord sediment, hot-...

journals.plos.org

Gonzalo Gomez Saez@ggomezsaez.bsky.social · 2mo ago

Arctic fjords are hotspots for carbon sequestration affected by global warming. In our last article, published in #PLoSBiology, we show that fungi living in Svalbard sediments efficiently assimilate labile DOM and retain it as microbial biomass, rather than allowing it to be rapidly respired.

This month we welcome 3 new researchers to the #ERC_SIESTA project @mioceanologie.bsky.social @cnrs.fr 🔬 ❄️ @lassezj.bsky.social, postdoc, Arctic microbial ecology 🧬 Claire Jenkins, masters student, astrobiology & extreme environments ⚡Ezra Finney, masters student, microbial ecology & bioenergetics

Link to the article (open-access) published in #TheISMEjournal: academic.oup.com/ismej/articl...

Hypoxia increases microbial carbon assimilation of taurine in a seasonally anoxic fjord

Abstract. Hypoxic zones are expanding globally altering marine biogeochemical cycles. Within these low-oxygen regions, microbial communities play a key rol

academic.oup.com

Great work of Ömer Coskun, former postdoc of my #DFGEmmyNoether group, in collaboration with colleagues in Munich, Bremen, Oldenburg and Aarhus @ianpgm.bsky.social

Many ocean microbes have the genetic potential of consuming taurine, a key organosulfur compound, but it is unclear how this activity is linked to the worldwide decline in oxygen levels. Here, we found by 13C-DOS qSIP that taurine was only used as a C source in hypoxic waters of the Mariager Fjord.

Hugely proud of @microbemac.bsky.social on the publication of her first first-author paper from her PhD! 🔬❄️🎓🏆 Also a first for me: my first PhD student's first first-author PhD paper 😁📃🔬🏆

James Bradley@drbradbrad.bsky.social · 3mo ago

What happens to Arctic soils when they thaw? ❄️🦠🔬 We thawed frozen Svalbard soils & identified which microbes grew following thaw. Our results highlight how dormancy, predation & seasonality shape carbon cycling in thawing Arctic soils @microbemac.bsky.social #ERC_SIESTA tinyurl.com/4sawn2dj

Some snaps from 79° north 🐻‍❄️

James Bradley@drbradbrad.bsky.social · 3mo ago

What happens to Arctic soils when they thaw? ❄️🦠🔬 We thawed frozen Svalbard soils & identified which microbes grew following thaw. Our results highlight how dormancy, predation & seasonality shape carbon cycling in thawing Arctic soils @microbemac.bsky.social #ERC_SIESTA tinyurl.com/4sawn2dj

. @microbemac.bsky.social @mioceanologie.bsky.social #ERC_SIESTA

CNRS Terre & Univers@cnrs-insu.bsky.social · 3mo ago

Bonne nouvelle 😅 Une nouvelle étude montre que le dégel des sols arctiques n’entraîne pas une activation complète de la vie microbienne. Environ la 1/2 des micro-organismes présents dans ces sols restent dormants, même après plusieurs mois de dégel. #Ouf ▶️ www.insu.cnrs.fr/fr/cnrsinfo/...

What happens to Arctic soils when they thaw? ❄️🦠🔬 We thawed frozen Svalbard soils & identified which microbes grew following thaw. Our results highlight how dormancy, predation & seasonality shape carbon cycling in thawing Arctic soils @microbemac.bsky.social #ERC_SIESTA tinyurl.com/4sawn2dj

Seasonal thawing of high Arctic soils triggers selective microbial growth and predation | mSystems

Microorganisms play key roles in transforming soil carbon into greenhouse gases. As Arctic soils warm as a result of climate change, greater depths and expanses of permanently frozen soil are experien...

tinyurl.com

Svalbard is thawing in April, and it’s not supposed to. 2026 ground temperatures at 0.2m depth in Svalbard spiking to 0°C in April, far exceeding the 1998-2025 median and maximum

Bravo Sibylle Lebert who did a fantastic job presenting her #ERC_SIESTA research on bacterial ice nucleation in glacier environments at the 33e congrès de l’École doctorale Sciences de l’environnement (ED251) at @mioceanologie.bsky.social @univ-amu.fr @erc.europa.eu ❄️🧬🦠🔬🇪🇺

Welcome to bluesky @lauramolares.bsky.social 👋 Laura is a polar geomicrobiolist & PhD student @mioceanologie.bsky.social @univ-amu.fr @qmul.bsky.social @nhm.org whose research spans across ❄️ glaciers 🌨️ atmosphere 🧬 metagenomics 🧪 incubations ⚡ bioenergetics & even the Andes 🏔️ & Amazon 🐛

Welcome to bluesky @lauramolares.bsky.social 👋 Laura is a polar geomicrobiolist & PhD student @mioceanologie.bsky.social @univ-amu.fr @qmul.bsky.social @nhm.org whose research spans across ❄️ glaciers 🌨️ atmosphere 🧬 metagenomics 🧪 incubations ⚡ bioenergetics & even the Andes 🏔️ & Amazon 🐛

❄️ SVALBARD 78°N ❄️ #ERC_SIESTA fieldwork underway in Svalbard, as we search for the survival, dormancy and ice nucleation strategies of microbes in Earth's extremes 🦠 🧬 🔬 ❄️ 🐻‍❄️ @cnrs.fr @erc.europa.eu @mioceanologie.bsky.social @cnrsecologie.bsky.social @univ-amu.fr

Antarctica isn’t owned by anyone and has no official flag, so when I travelled south for the #ERC_SIESTA #POLARIN project, I brought flags designed by schoolchildren, to send them photos of their amazing creations flying in Antarctica. Here are a few of their brilliant designs #AntarcticFlags 🤩🐧❄️🐋🇦🇶

The Department of Earth Sciences and St Peter's College are recruiting an Associate Professor (or Professor) in Earth Surface Processes to join our thriving academic community! earth.web.ox.ac.uk/vacancies

Independently self-replicating RNA! The key to transitioning from a soup of organic molecules to something resembling life was self-replication. This RNA molecule might be one of many that can do that and would have been the basis for the first cellular machinery. 🧪 www.biorxiv.org/content/10.1...

Laura @lauramolares.bsky.social presenting her prize winning (!!) @hfspo.bsky.social @erc.europa.eu #ERC_SIESTA PhD research on the catabolic strategies of glacial microbiomes at the Polar & Alpine Microbiology Conference, thanks to support from @eageo.bsky.social ❄️🔬🦠🧬🏆 @mioceanologie.bsky.social

EAG@eageo.bsky.social · 6mo ago

New on the EAG Blog: "Reflections from PAM 2026 by EAG Sponsored Student Laura Molares Moncayo". At the 10th International Conference on Polar & Alpine Microbiology held in Copenhagen, Laura shares her experiences and insights, read more here: buff.ly/qZcalWB @lauramolares.bsky.social

🚨3 Lectureships in Biology 🚨 Come join us in Bristol @bristolbiosci.bsky.social! We are looking for new collegues working across a broad spectum of topics in biology, including ecology & environmental change. Get in touch if you have Qs! Apply here by 8 March: www.bristol.ac.uk/jobs/find/de...

#MicroSky: ENVIRON BIOTECH: Vidal et al discuss that deep beneath Earth’s surface, life thrives in extremes. Subsurface microbiology reveals the limits and origins of life, and guides the search for biosignatures on Mars, icy moons, and distant exoplanets. Do not miss doi.org/10.1111/1751...

How do glaciers drive and interact with Earth's regional and global biogeochemical cycles? ❄️🏔️🦠🪨🌊🌎🧪⚒️ @natrevearthenviron.nature.com Expertly led by Jon Hawkings & many collaborators @mioceanologie.bsky.social @cnrs.fr @cnrs-dr12.bsky.social @cnrs-insu.bsky.social www.nature.com/articles/s43...

Glacier biogeochemical cycling and downstream impacts - Nature Reviews Earth & Environment

Far from frozen and sterile environments, glaciers are biogeochemical reactors and regulators. This Review outlines key biogeochemical and associated physical processes occurring in glacierized enviro...

nature.com

Retreating glaciers have become focal points for climate awareness and for tourism. This dual role exposes a paradox: Tourism can amplify climate awareness, yet risks reinforcing maladaptive responses in the very landscapes it seeks to showcase. www.nature.com/articles/s41...

Melting glaciers as symbols of tourism paradoxes - Nature Climate Change

Visitors are increasingly drawn to disappearing glacier landscapes for their beauty and scientific value. This Comment examines the paradoxes reshaping relationships among glaciers, people and communi...

nature.com

UK to cut climate finance to poor countries by a fifth despite promising more help - Campaigners say proposed cut from £11.9bn over past five years to £9bn over next five years will cost lives and livelihoods #climatecrisis Story by @fionaharvey.bsky.social www.theguardian.com/environment/...

UK to cut climate finance to poor countries by a fifth despite promising more help

Exclusive: Campaigners say proposed cut from £11.9bn over past five years to £9bn over next five years will cost lives and livelihoods

theguardian.com

Hydrostatic pressure induces strong leakage of dissolved organic matter from “marine snow” particles www.science.org/doi/full/10.... #jcampubs 🌊

Hydrostatic pressure induces strong leakage of dissolved organic matter from “marine snow” particles

Particles sinking into the deep ocean come under pressure and leak dissolved organic matter, which affects marine carbon cycling.

science.org

High-efficiency methane consumption by atmospheric methanotrophs in subsurface karst caves: The irrefutable methane sink www.science.org/doi/full/10.... #jcampubs

High-efficiency methane consumption by atmospheric methanotrophs in subsurface karst caves: The irrefutable methane sink

Microbes in subsurface caves consume trace amount of methane from the air.

science.org