Joint PICES/ICES Working Group 46 on Ocean Negative Carbon Emissions (ONCE)

During the meeting, recent activities and gatherings of the WG, and the rationale that WG 46 was built upon, were reviewed, updates on the progresses made by each task team within the WG were provided, and further steps for WG 46 were discussed. [...] TT2 agreed that instead of proposing a new time-series station, it is more feasible for the TT to take advantage of the international nature of the Working Group to re-define the capabilities of time-series by focusing on the need of carbon measurement based on the established time-series. [...] AGENDA ITEM 4 Formation of Task Teams to address the ToRs Following the first meeting of WG 46, five task teams (TTs) were formed, corresponding to the five missions and sub-missions of the WG. [...] Task team 1b: Produce a paper to summarize and compare the assumptions and conclusions of existing studies on proposed ocean-based negative carbon emission methods, including an assessment of the amount of carbon (likely and maximum) that could be sequestered globally by each proposed method and compare these values to the expected increase in anthropogenic release of CO2 in the atmosphere in the. [...] Meeting discussions of TT3a and TT3b TT3a members discussed a combination of time-series stations near Xiamen, and how the integrated carbon sequestration experimental studies could better facilitate the understanding of the combined effect of different principles that ocean-based carbon sequestration is based on, and to help maximize the total effect of ocean negative carbon emissions.