| DOI: | 10.1080/14693062.2016.1222260
|
| Scopus记录号: | 2-s2.0-84997161555
|
| 论文题名: | Delivering the two degree global climate change target using a flexible ratchet framework |
| 作者: | Ritchie H; , Reay D; S
|
| 刊名: | Climate Policy
|
| ISSN: | 1469-3062
|
| EISSN: | 1752-7457
|
| 出版年: | 2017
|
| 卷: | 17, 期:8 | | 起始页码: | 1031
|
| 结束页码: | 1045
|
| 语种: | 英语
|
| 英文关键词: | climate change mitigation
; climate policy frameworks
; climate targets
; development and climate
; equity
; international negotiations
|
| Scopus关键词: | climate change
; conference proceeding
; environmental policy
; equity
; future prospect
; international relations
; targeting
; United Nations Framework Convention on Climate Change
|
| Scopus学科分类: | nvironmental Science: General Environmental Science
; Earth and Planetary Sciences: Atmospheric Science
|
| 英文摘要: | Global climate negotiations have been characterized by a divide between developed and developing nations–a split which has served as a persistent barrier to international agreement within the United Nations Framework Convention on Climate Change process. Notable progress in bridging this division was achieved at the 21st Conference of the Parties meeting in Paris through the introduction of Intended Nationally Determined Contributions (INDCs). However, the collective ambition of submitted INDCs falls short of a global 2°C target, requiring an effective ratchet mechanism to review and increase national commitments. Inequitable distribution of additional responsibilities risks re-opening historic divisions between parties. This article presents a flexible ratchet framework which shares mitigation commitments on the basis of per capita equity in line with emerging requirements for a 2°C target. The framework has been designed through convergence between developed and developing nations; developed nation targets are based on an agreed standardized percentage reduction wherever emissions are above per capita equity; developing nations are required to peak emissions at or below per capita equity levels by an agreed convergence date. The proposed framework has the flexibility to be integrated with current INDCs and to evolve in line with shifting estimates of climate sensitivity. Policy relevance The outcome of the 21st Conference of the Parties (COP21) negotiations in Paris offered mixed results in terms of level of ambition and submitted national commitments. A global agreement to keep average global temperature rise below two degrees was maintained; however, current pledged Intended Nationally Determined Contributions (INDCs) are projected to result in an average warming of close to three degrees. The implementation of a global ratchet mechanism to scale-up national commitments will remain key to closing this ambition gap to reach this two degree target. How this upscaling of responsibility is shared between parties will be a defining discussion point within future negotiations. This study presents a standardized, equity-based framework for how this ratchet mechanism can be implemented–a framework designed to be flexible for evolution in line with better understanding of climate sensitivity, and adaptable for integrations with current INDC proposals. © 2016 Informa UK Limited, trading as Taylor & Francis Group. |
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/80246
|
| Appears in Collections: | 科学计划与规划
|
|
There are no files associated with this item.
|
|
作者单位: | School of Geosciences, University of Edinburgh, Edinburgh, United Kingdom
|
| Recommended Citation: | |
Ritchie H,, Reay D,S. Delivering the two degree global climate change target using a flexible ratchet framework[J]. Climate Policy,2017-01-01,17(8)
|
|
|