《巴黎协定》下的国际碳市场机制:基本形式和前景展望

《巴黎协定》第6条建立的两种国际碳市场机制受到广泛关注,将在2020年后的气候制度中发挥至关重要的作用。文中识别了覆盖范围、交易指标类型和管理模式等3个构成国际碳市场机制的关键要素及其不同设计选项,并以此为基础阐明国际碳市场机制的基本形式。梳理并识别谈判中有关国际碳市场机制的焦点问题及其不同规则设计,并在此基础上分析中国参与国际碳市场机制的机遇和挑战。结合中国气候融资、提升减排力度、推动绿色“一带一路”和气候变化南南合作的内在需求以及国内有关市场机制的现有能力,分析提出两种国际碳市场机制在中国近期、中期和远期的发展前景及其所需的能力建设。

International carbon markets under the Paris Agreement:Basic form and development prospects

Article 6 of the Paris Agreement introduces two international carbon markets that receive extensive attention and are expected to play an important role in the post-2020 climate regime.Three key elements of the two international carbon markets,including the scope,the types of tradable units and the governance,are identified,as the basis to clarify their basic forms.Based on the key issues and their different designs identified in negotiations,this study analyzes the contributions and challenges for China to participate in international carbon markets.Considering the inherent needs of climate change mitigation,climate finance,the development of a green"Belt and Road"and the China South-South cooperation in climate change,along with the existing domestic capacities on market mechanisms,this study puts forward the short-,medium-and long-term development prospects of the two international carbon markets.

Studies on Silicon-Containing Fragrance Raw Materials(Ⅳ)——Synthesis of Spiro-Acetals of 5-Trimethylsilylcyclohex-2-(or 3)enone

Some novel spiro-acetals of 5-trimethylsilylcyclohex-2(or 3)-enone were synthesized from the reaction of silylcyclohexenones with the corresponding a, ω-diols in the presence of oxalic acid or adipic acid.