Group 1 - The PEMSEA Blue Carbon Technical Working Group held its second meeting in Haikou, Hainan, with nearly 60 experts and industry representatives from various countries participating [1][2] - The East China Sea region has significant blue carbon ecosystems, with mangroves and seagrass beds accounting for over 30% and 20% of the global blue carbon ecosystem, respectively [1] - Accurate assessment of the region's blue carbon ecosystems and their carbon sequestration capacity is crucial for achieving the goals of the Paris Agreement and promoting sustainable development in the East China Sea region [1] Group 2 - The meeting discussed key topics such as the distribution and quality of blue carbon ecosystems, carbon storage survey status, regional blue carbon accounting methodologies, certification systems, and market roadmaps [2] - Chinese scientists proposed the establishment of a blue carbon monitoring network for the East China Sea region, which received positive responses and recognition from participants [2] - The meeting enhanced understanding of the blue carbon ecosystem in the East China Sea and contributed to regional climate change management efforts [2]