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 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.