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If you're interested in ocean carbonate chemistry, check out this new paper 🌊 A comprehensive overview of 68 existing ocean carbonate chemistry data products and datasets including cruise data compilations, gap-filled products, model simulations, .. Please share! essd.copernicus.org/articles/18/...

@carolrobinson8.bsky.social releasing the IOC-R report on key knowledge gaps and research strategies for 🌊ocean carbon at #OSM26. www.ioc.unesco.org/en/articles/...

@jhauck.bsky.social is a biogeochemical modeler at @awi.de and a Professor at University of Bremen. Her research focuses on understanding the drivers that influence the ocean's ability to take up atmospheric CO₂, including during marine CO₂ removal (mCDR) deployments.

#RECCAP2 paper alert, Jemma Wadham led the polar chapter, summarizing knowns and (large) unknowns of carbon stocks and fluxes from ice sheets to land fringes, fjords, 🌊 oceans and sediments.🧪 Excellent reference starting point for future work. agupubs.onlinelibrary.wiley.com/doi/10.1029/... @awi.de

Prof. Dr Hajo Eicken is the new director of the Alfred Wegener Institute! Born in Bremerhaven, the glaciologist will relocate from Alaska to take up his position as scientific director on 20 March. 🎉⚓ www.awi.de/en/about-us/... @helmholtz.de 📸: University of Alaska Fairbanks

*DEADLINE EXTENDED* February 8 Submit your suggestions and nominate (yourself or others) as a co-author for the 2026 edition of the 10 New Insights in Climate Science

@fcstpauli.com stabil.

🌊 an opportunity to suggest endangered data, I would think

🌊 Paper led by the Norwegian team in #OceanNETs showing largely additive effects of marine and terrestrial #CDR approaches shorturl.at/F0dqf @miriamseif.bsky.social

A comparison between alkalinity in the ocean and in soils, led by Jelle Bijma, motivated by enhanced weathering as a carbon dioxide removal method. 🌊 bg.copernicus.org/articles/23/...

🌊 New ocean alkalinity enhancement paper out, led by @tanvi05.bsky.social: We conducted global and regional (subduction regions) alkalinity enhancement simulations in the emission-driven AWI-ESM. Key findings are ... shorturl.at/9Cz5r @miriamseif.bsky.social @awi.de @cdrmare.bsky.social 1/x

Everyone, take a note of this, please. Ocean alkalinity enhancement does hardly counter ocean acidification.

🌊 New paper out assessing the potential of Ocean Alkalinity Enhancement (OAE) to mitigate the impacts of ocean acidification on marine calcifiers doi.org/10.1021/acs....

The Global Carbon Project has just published the most comprehensive Global Hydrogen Budget to date. H2, although not a GHG, has an indirect Global Warming Potential 37 times more potent than CO2. Carbon Brief: www.carbonbrief.org/hydrogen-emi... Research paper: www.nature.com/articles/s41...

JOB ALERT! @vliz.be is recruiting a Data Engineer to work in a wide-ranging role to help coordinate global SOCAT activities. Full details: vliz.be/en/jobs/vliz...

Zur Veröffentlichung des Global Carbon Budget 2025 haben Julia Pongratz @lmumuenchen.bsky.social und ich die Ergebnisse in einem Pressebriefing des SMC vorgestellt und mit Jan Minx @pik-potsdam.bsky.social, Silvio Wenzel und den Journalisten diskutiert. Danke für das Interesse und die Fragen!

🌊 oceanjobs

Published today in Earth System Science Data: The Global Carbon Budget 2025 essd.copernicus.org/preprints/es...

🚨 The Global Carbon Budget 2025 has just been released and I actively contributed for the first time 😍

1/2 We just published the Global Carbon Budget 2025, with a mix of bad news (CO2 emissions continue to grow) and encouraging news (35 countries saw emissions decline over the past decade while growing their economies). Read the highlights in a short article: theconversation.com/the-worlds-c...

Get your fill of Global Carbon Budget 2025 figures and associated data here, released today: robbieandrew.github.io/GCB2025/

The concentration of CO2 in the atmosphere is set to reach 425.7 parts per million in 2025. Emerging climate impacts on the land and ocean carbon sinks contributed 8% to the rise in atmospheric CO2 concentration since 1960. 11/

The land and ocean CO₂ sink are 25% and 7% smaller, respectively, than they would have been without the effects of climate change and variability, on average for the 2015-2024 period. Combined, this is equivalent to the total sink (land and ocean) being nearly 20% smaller than otherwise. /10

The land & ocean CO2 sinks were re-evaluated based on stronger evidence & new understanding • The ocean CO2 sink was re-evaluated upwards, taking up 29% of the total emissions. • The land CO2 sink was re-evaluated downwards, taking up 21% of the total emissions. www.nature.com/articles/s41... 9/

Total anthropogenic CO2 emissions – the sum of fossil & land-use change emissions – have grown more slowly in the past decade1 (0.3% per year on average), compared to the previous decade (1.9% per year). The growth in fossil emissions is offset by the decrease in land-use change emissions. 8/

Good news: 35 countries have decreased their fossil CO2 emissions significantly (p<0.05) while growing their economies in the decade 2015-20244, twice as many as during the previous decade (2005-2014; 18 countries. These 35 countries account for 27% of global fossil CO2 emissions. 5/

The Global Carbon Budget is out and Glen covers it all in this thread:

Happy to see this out! Meltwater can delay future surface warming, and its interannual variations impact ocean stratification & overturning.​​ This effect is usually absent from models. Including it as forcing may lead to more realistic simulation of surface temperature and sea ice trends🧊🌊 (1/7)

Great dissection of where the world stands on climate 10 years after Paris: better than ever; worse than needed. Start here: www.nytimes.com/interactive/... But lemme quibble a bit with the CO₂ₑ emissions pathways painted here. A quick 🧵

Seeking a three year postdoc in the field of ocean biogeochemistry and productivity using mechanistic models and synthesis of observations. Note the short fuse for applications. Please help distribute. All nationalities welcome to apply! 🌊 www.jobs.ac.uk/job/DPG117/p...

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We are - to our knowledge for the first time - not only assessing the potential efficiency of OAE using a global model, but also potential effects on phytoplankton and how phytoplankton can affect OAE efficiency. Exiting results - enjoy reading 😊 @jhauck.bsky.social

Very happy to see this paper from the #OceanNETs project out: --> net primary production can locally be reduced by 15% in regions of ocean alkalinity enhancement due to indirect effects. 1/2

Open Letter by scientists to the Council: "Climate Neutrality Is Europe’s Greatest Economic Opportunity”. Ahead of the European Council meeting on 23.10.2025, 2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets. zenodo.org/records/1739...

🌊 Open position W2-Professorship (with tenure track) in Physical Oceanography @geomarkiel.bsky.social in Kiel, Germany. Application deadline: 5th of November 2025 Please find more information here: www.geomar.de/en/karriere/...

Frauke Bunsen, Cara Nissen and Judith Hauck assess the impacts of climate change on the global ocean carbon sink doi.org/10.1029/2023... #ocean #carbon

🌟 Postdoc Opportunity in Marine Biogeochemistry at CNRS-CEREGE! 🚢 Are you a passionate researcher ready to tackle climate change? Dive into the ERC-funded Deep-C project in Aix-en-Provence, France! ⬇️

In the Department of Earth and Environmental Sciences @columbiauniversity.bsky.social, we are hiring an Assistant Professor in Atmosphere and/or Ocean Physics. No deadline stated, but review will begin soon, so please do not delay. apply.interfolio.com/173819

So nice to see #Polarstern pCO₂ data from the @awi.de MOSAiC expedition being used to provide better quantifications of Arctic Ocean CO₂ uptake. 🌊 agupubs.onlinelibrary.wiley.com/doi/10.1029/...

🌊 In 2023, the ocean carbon sink weakened for the first time in a record-hot year 🌡️🌎 Our new study in Nature Climate Change quantifies this unexpected decline and explains how it came about. 👇 doi.org/10.1038/s415...

My latest: Polar scientists warn that the White House and NSF are planning to terminate the Nathaniel Palmer, the only US research icebreaker capable of handling Antarctic extremes, this October. So far the plan has seen minimal pushback from Congress.

🌊❄️🧪 🇦🇶 Please share: We have learned that the National Science Foundation is moving ahead with plans to decommission the U.S. Research Vessel/Ice Breaker Nathaniel B. Palmer this October. If you care about Antarctic research, please read on (1/n)

They want to close the NOAA lab (GML) that brings you this, the most iconic time series in the environmental sciences. gml.noaa.gov/ccgg/trends/

🌊 Still not familiar with #SOCOM2? 5 key experiments tackling biases in ocean CO₂ reconstructions by addressing data gaps, changing networks & mapping methods. Possible session at #OSM2026! climate.esa.int/en/supportin... @oc4c.bsky.social @vliz.be @jhauck.bsky.social @oceancarbon.bsky.social

AI has greatly accelerated my transition from Matlab to Python. But 3 experiences *this week* have alerted me to the potential for mistakes and brain rot when getting too reliant. First, I used it to help me write code to compute lagged correlations between two variables. 🌊🧵1/4

📢 New paper alert! 📢 New insight into how sea ice controls the ocean uptake of carbon dioxide around Antarctica, obtained from the unique year-round Rothera Time Series. Delighted to be part of this study, led by the very excellent Elise Droste. 🧪❄️🥼🌊 www.nature.com/articles/s43...

Two Postdoc Opportunities in Environmental Microbiology! Join us and work on microbial key players exposed to oxygen depletion. Please share widely! Deadline: 25 July More information can be found here: tinyurl.com/4kwzzt6p

On this day 40 years ago, the Schengen agreement was signed, paving the way for free movement across Europe without internal checks. Today, 3.5 million Europeans from 29 countries are travelling, working, and moving freely across Europe on a daily basis. 🔗Learn more: europa.eu/!6QwJvb