《气候变化中的海洋与冰冻圈特别报告》的蓝碳内容及其影响

国际社会普遍认识到蓝碳在减缓和适应气候变化方面的价值,联合国政府间气候变化委员会(IPCC)于2019年9月25日发布的《气候变化中的海洋与冰冻圈特别报告》(SROCC)将蓝碳作为海洋自然过程减缓的重要内容,指出易于管理的海洋系统所有生物驱动的碳通量及存量可以被认为是蓝碳,并将红树林、海草床和滨海盐沼、大型海藻列为第四...

Blue carbon in the Special Report on the Ocean and Cryosphere in a Changing Climate and its impacts

The international society widely recognizes the value of blue carbon in mitigating and adapting to climate change.Specifically,the United Nations Intergovernmental Panel on Climate Change released the Special Report on the Ocean and Cryosphere in a Changing Climate(SROCC)on September 25,2019 that reported blue carbon as an important part of the mitigation of marine natural processes.Moreover,SROCC pointed out that all biologically-driven carbon fluxes and storage in marine systems that are amenable to management can be considered as blue carbon in which mangroves,seagrasses,coastal marshes,and macroalgae were listed as coastal blue carbon.SROCC reviewed the impact of climate change on aspects such as blue carbon,blue carbon mitigation,and adaptation to climate change,signifying that blue carbon is the current“no regrets choice”for most coastal countries.Therefore,it is clear that SROCC is a milestone in the development of blue carbon.With this study,the authors strongly suggest that China should strengthen basic blue carbon surveys and research,incorporate blue carbon in the national greenhouse gas inventory and nationally determined contributions,and promote coastal wetland protection and restoration with blue carbon.