| 来源类型 | Discussion paper |
| 规范类型 | 论文 |
| 来源ID | DP12757 |
| DP12757 Learning from Nationally Determined Contributions | |
| Carlo Carraro; Joseph Aldy; William A. Pizer; Keigo Akimoto; Massimo Tavoni | |
| 发表日期 | 2018-02-26 |
| 出版年 | 2018 |
| 语种 | 英语 |
| 摘要 | National governments have submitted emission mitigation pledges under the Paris Agreement that vary considerably in their form, level of required emission mitigation, elaboration of non-emission goals, and implementation strategies. As a result, domestic emission mitigation programs necessary to deliver on the Paris pledges will diverge in the degree to which that mitigation will be achieved at least cost. This paper explores both what we learn from how national determined contributions (NDCs) diverge from least-cost policies and the implications for comparing mitigation effort. The NDCs can reveal a country’s preferences over climate policy, economic development, and other priorities. Modeling analysis of the NDCs can highlight opportunities for (i) measuring the revealed cost of institutional and political constraints that limit least cost implementation; (ii) mitigating climate change alongside other policy objectives; (iii) policy learning over time. We undertake two case studies based on global energy-economic models to illustrate how implementation of NDCs may deviate from least-cost implementation. In the first case study, we employ the WITCH model to assess how the non-emissions goals in NDCs may constrain implementation in a way that increases costs related to cost-effective emissions abatement. In the second case study, we employ the DNE21+ model to assess how countries’ stated domestic implementation policies may diverge from a cost-effective domestic mitigation policy. These modelling analyses serve to illustrate how comparing mitigation implementation can then be represented by a bounding exercise that develops both conservative and generous estimates of mitigation effort. |
| 主题 | Public Economics |
| 关键词 | Emissions mitigation International environmental agreements Modeling analysis Comparability of effort Nationally determined contributions |
| URL | https://cepr.org/publications/dp12757 |
| 来源智库 | Centre for Economic Policy Research (United Kingdom) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/541567 |
| 推荐引用方式 GB/T 7714 | Carlo Carraro,Joseph Aldy,William A. Pizer,et al. DP12757 Learning from Nationally Determined Contributions. 2018. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
