国家自主贡献更新进展、特征及其对全球气候治理的影响

国家自主贡献(NDC)是《巴黎协定》最核心的制度,体现了全球气候治理模式从"自上而下"到"自下而上"的变迁.文中对截至2021年7月1日92个缔约方通报或更新的NDC进行了比较分析,识别出7种更新方式:提高量化减排目标数字、调整减排目标类型和覆盖范围、增加适应目标和政策、增加2050年减排愿景、主动适用NDC信息和核算...

Updates of Nationally Determined Contributions:progress,characteristics and impacts on global climate governance

Nationally Determined Contributions (NDC) is the core central arrangement of Paris Agreement, which reflects the evolution of global climate governance mode from “top-down” to “bottom-up”. 92 communicated or updated NDC by July 1, 2021 were analyzed with comparing method in this research. Seven types of updating patterns were found: increasing the values of quantitative mitigation targets, adjusting the types and coverage of mitigation targets, adding adaptive goals and policies strategy, increasing the 2050 carbon-neutral vision, proactively applying NDC information and accounting guidance, reporting the progress of NDC implementation, supplementing the policy and measures for achieving the goals. It is found that the updated NDCs in some countries have showed some problems that may affect the effectiveness of global climate governance, including increasing the target number but the actual mitigation efforts is regressing, proposing the long-term target to avoid the enhancement of the near-future ambition for target and implementation, and insufficient financial support for NDC implementation, etc. Global climate governance should respect different updating patterns of NDC, to consolidate the “bottom-up" arrangement of the Paris Agreement, and establish a comprehensive and reasonable “ambition view” with enhancing ambition not only on the target, but also on implementation and support.