We would like to let you know that applications are still accepted for the Third Winter School on Ocean Acidification and Multiple Stressors hosted by OA-ICC in Monaco from 24 November to 5 December. This two-week training course will provide participating scientists with a thorough understanding about key concepts and experimental design used to study the impacts of ocean acidification in the context of additional stressors.

We would like to encourage you to participate in an exciting webinar series exploring how data sharing software is transforming marine science. This online event is scheduled for October and November 2025 and is organised by the Decade Coordination Office for Ocean Data Sharing (DCO-ODS) and the European Marine Observation and Data Network (EMODnet).

We would like to inform you that we are extending the deadline for applications for two new members to join the IOCCP Scientific Steering Group (SSG) as leaders responsible for Coordination of Optimal Global Design for Ocean Carbon Observations (Position #1) and Coordination of Regional Ocean Biogeochemical Observations in Latin America (Position #2).

We are excited to let you know that IOCCP is looking for two new members to join its Scientific Steering Group (SSG) for terms beginning on 1 October 2025, to act as leaders responsible for Coordination of Optimal Global Design for Ocean Carbon Observations (Position #1) and Coordination of Regional Ocean Biogeochemical Observations in Latin America (Position #2).

We are excited to share with you an important document describing the first operational steps to implement the reference-quality measurements of the Surface Ocean CO₂ Observing Network (SOCONET-Tier 1). SOCONET-Tier 1 is the observational cornerstone for surface ocean fCO₂w observations to quantify sea-air CO₂ fluxes with sustained delivery of reference quality datasets in support of efforts such as the Global Carbon Budget, Global Greenhouse Gas Watch and other assessments and activities.

We are thrilled to inform you that the Surface Ocean CO₂ Atlas (SOCAT) version 2025 is now available on the SOCAT website. We would like to congratulate and thank the entire SOCAT team, as well as all data providers, for their enormous continuous efforts related to annual releases of the product.

We would like to share with you the Call for Review of 2025 SCOR Working Group Proposals sent to SCOR National Committees and Nominated Members, SCOR Executive Committee, Chairs of SCOR Subsidiary Bodies, Affiliated Organizations, Corresponding Organizations, Interested International Organizations.

In our continuous efforts to optimise and operationalise ocean carbon observations we would like to invite you to attend the UN Ocean Decade Conference 2025 off-site side event From Science to Solutions: Advancing the Ocean Carbon System for Climate Action hosted by ICOS, JPI Oceans & Ocean Frontier Institute with support from GEOMAR, NOC, Ifremer, NORCE, and IOPAN.

We would like to kindly remind you that the application for the OceanObs’29 Program Committee deadline is approaching on 31 May 2025.

We are excited to announce that the Oostende Declaration in which the 100+ ocean experts and stakeholders call for concerted international and intergovernmental efforts to create a robust, resilient and sustainable surface ocean carbon observing system has been officially recognized as a commitment at the UN Ocean Conference 2025.