eprintid: 13918 rev_number: 17 eprint_status: archive userid: 353 dir: disk0/00/01/39/18 datestamp: 2016-11-03 15:07:30 lastmod: 2021-08-27 17:27:57 status_changed: 2016-11-03 15:07:30 type: article metadata_visibility: show item_issues_count: 1 creators_name: Liu, J.-Y. creators_name: Fujimori, S. creators_name: Masui, T. creators_id: 8258 creators_orcid: 0000-0001-7897-1796 title: Temporal and spatial distribution of global mitigation cost: INDCs and equity ispublished: pub divisions: prog_ene keywords: Paris Agreement, INDC, climate change, equity, mitigation cost, CGE abstract: Each country's Intended Nationally Determined Contribution (INDC) pledges an emission target for 2025 or 2030. Here, we evaluated the INDC inter-generational and inter-regional equity by comparing scenarios with INDC emissions target in 2030 and with an immediate emission reduction associated with a global uniform carbon price using Asian-Pacific Integrated Model/Computable General Equilibrium. Both scenarios eventually achieve 2 °C target. The results showed that, as compared with an immediate emission reduction scenario, the inter-generational equity status is not favorable for INDC scenario and the future generation suffers more from delayed mitigation. Moreover, this conclusion was robust to the wide range of inequality aversion parameter that determines discount rate. On the other hand, the INDC scenario has better inter-regional equity in the early part of the century than does the immediate emission reduction scenario in which we assume a global carbon price during the period up to 2030. However, inter-regional equity worsens later in the century. The additional emissions reduction to the INDC in 2030 would improve both inter- and inter-regional equity as compared to the current INDC. We also suggest that countries should commit to more emissions reductions in the follow-up INDC communications and that continuous consideration for low-income countries is needed for global climate change cooperation after 2030. date: 2016-10-26 date_type: published publisher: Institute of Physics Publishing (IOP) id_number: doi:10.1088/1748-9326/11/11/114004 creators_browse_id: 2881 full_text_status: public publication: Environmental Research Letters volume: 11 number: 11 pagerange: e114004 refereed: TRUE issn: 1748-9326 coversheets_dirty: FALSE fp7_project: no fp7_type: info:eu-repo/semantics/article citation: Liu, J.-Y., Fujimori, S. ORCID: https://orcid.org/0000-0001-7897-1796 , & Masui, T. (2016). Temporal and spatial distribution of global mitigation cost: INDCs and equity. Environmental Research Letters 11 (11) e114004. 10.1088/1748-9326/11/11/114004 . document_url: https://pure.iiasa.ac.at/id/eprint/13918/1/Temporal%20and%20spatial%20distribution%20of%20global%20mitigation%20cost%20INDCs%20and%20equity.pdf document_url: https://pure.iiasa.ac.at/id/eprint/13918/2/Temporal%20and%20spatial%20distribution%20of%20global%20mitigation%20cost%20supp.pdf