We are thrilled to inform you that the schedule for the upcoming OA Week 2023 is now available at http://www.goa-on.org/webinars/OaWeek2023/webinar.php This online event will take place from 30 October to 3 November 2023 and is designed to provide a platform for the ocean acidification community from across the world to exchange their latest findings through thematic sessions, plenary presentations and community engagement activities.

We would like to bring your specific attention to three sessions focused on issues closest to IOCCP mission:

• the "Sensors Session", planned for the first day of the OA

Building resilience in the production and distribution of CO₂-in-seawater Certified Reference Materials (CRMs) continues to be an issue for the global marine carbon community because there is a single source of reference materials for total alkalinity, dissolved inorganic carbon, and pH in seawater and a calibrated HCl titrant for seawater alkalinity analysis (A. Dickson Laboratory, Scripps Institution of Oceanography, UC San Diego, USA). On 16 September 2021, as part of the Global Ocean Acidification Observing Network (GOA-ON) Week, IOCCP contributed to a dedicated session "Community Discussion around CO₂-in-seawater CRMs."

Apart from introducing the results from over 240 responses to the

On behalf of the Global Ocean Acidification Observing Network (GOA-ON) we would like to let you know that the Ocean Acidification Week 2021 is just around the corner (Monday 13 September - Friday 17 September, 2021). This year, GOA-ON's virtual OA Week includes 5

Shaping the vision for the next decade of marine biogeochemistry observations through OceanObs'19 Community White Papers

On behalf of the Global Ocean Acidification Observing Network (GOA-ON) we are excited to announce that the GOA-ON Implementation Strategy was officially launched at the 4^th GOA-ON International Workshop, held in Hangzhou, China on 14-17 April. This document outlines how to implement the GOA-ON Requirements and Governance Plan, including expanding ocean acidification observations, closing human and technology capacity gaps, connecting scientists regionally and globally, and informing about the impacts of

We are happy to let you know that the 4^th Global Ocean Acidification Observing Network (GOA-ON) International Workshop (http://www.goa-on2019.com/en/index.html) will be held in Hangzhou, China from 14 to 17 April 2019. The Workshop, co-sponsored by IOCCP, will bring together scientists from around the world to discuss emerging aspects from the coupled effects of ocean acidification with multi-stressors, review global ocean acidification status and forecast capabilities, and explore opportunities for capacity development. The workshop is consisted of various events to facilitate an open, multi-level and comprehensive communication

The Global Ocean Acidification Observing Network (GOA-ON) and the Intergovernmental Oceanographic Commission (IOC) of UNESCO invite you to take part in a survey on ocean acidification research and observation data. Your answers to this survey will help trace where ocean acidification data is being collected, and where it is stored and served, to facilitate reporting on one of the indicators of Sustainable Development Goal (SDG) 14, 'Life below water'. SDG14 Target 3 on ocean acidification calls to 'minimize and address the impacts of ocean acidification, including through enhanced scientific cooperation at all levels'. IOC-UNESCO is the custodian agency for the

We would like to let you know that during its 51^st Executive Council Meeting in July 2018, the Member States of the Intergovernmental Oceanographic Commission (IOC) of UNESCO welcomed the Methodology for the Sustainable Development Goal (SDG) Target Indicator 14.3.1. The SDG Target Indicator 14.3.1 calls for "average marine acidity measured at an agreed suite of representative sampling stations". The Methodology provides guidance to scientists and countries about how to carry out measurements following the best practices established by experts in the ocean acidification community, including members of the Global Ocean Acidification Observing Network (GOA-ON) and IOCCP, and explains how to report the collected information.

The Global Ocean Acidification Observing Network Executive Council and the Organizing Committee would like to invite you to participate in this focused workshop following the 4th International Symposium on Oceans in a High CO₂ World. 

You can find the workshop agenda 

The International Ocean Carbon Coordination Project (IOCCP) and the International Atomic Energy Agency (IAEA), with co-sponsorship from the Millennium Institute of Oceanography (IMO) and the Center for the Study of Multiple-Drivers on Marine Socio-Ecological Systems (MUSELS) organized a hands-on Technical Workshop on Carbonate System Measurements at the Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, in Tijuana-Ensenada, México, from December 3 to 11, 2016.