对气候变化影响、适应和脆弱性的新认识——IPCC第六次评估报告第二工作组报告解读

Abstract:The Working Group Ⅱ （WGⅡ） report of the IPCC Sixth Assessment （AR6） report systematically describes the latest scientific understanding of observed and projected climate change impacts and risks，climate change adaptation options，and climate resilience development. The report shows that climate change is already causing widespread adverse effects on natural and human systems，and there is more evidence that the impacts associated with extreme events can be attributed to human activities such as anthropogenic emissions. The effectiveness of adaptation options varies between different systems，and will decrease with climate warming. Besides，the report defines the Climate Resilient Development （CRD） as a process of implementing greenhouse gas mitigation and adaptation options to support sustained development for all and points out that the CRD-relevant actions are quite urgent. Compared with the Fifth Assessment （AR5） report，the AR6 report puts more emphasis on solutions to climate change and makes new progresses on several aspects. For example，the AR6 report further extends the climate change risk framework，comprehensively assesses the latest climate change adaptation options，and elaborates the CRD pathway. The assessment results are important for deepening the understanding of the impacts and adaptation of climate change and formulating timely and systematic strategies.

收起