Solely economic mitigation strategy suggests upward revision of nationally determined contributions

<p>The use of equity principles to review the nationally determined contributions (NDCs) is critical to facilitating more ambitious climate actions. However, disagreement over the equity principles persists. We instead treat emission reduction as a solely economic behavior motivated by avoidin...

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Main Authors: Yang, P, Mi, Z, Yao, Y-F, Cao, Y-F, Coffman, D, Liu, L-C
Format: Journal article
Language:English
Published: Elsevier 2021
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author Yang, P
Mi, Z
Yao, Y-F
Cao, Y-F
Coffman, D
Liu, L-C
author_facet Yang, P
Mi, Z
Yao, Y-F
Cao, Y-F
Coffman, D
Liu, L-C
author_sort Yang, P
collection OXFORD
description <p>The use of equity principles to review the nationally determined contributions (NDCs) is critical to facilitating more ambitious climate actions. However, disagreement over the equity principles persists. We instead treat emission reduction as a solely economic behavior motivated by avoiding future economic damage from climate change. Assuming no international cooperation, we provide a solely economic mitigation pathway to review national climate pledges until 2100. Using the value in 2030 to review the NDCs, we find that the NDCs of China, the USA, and the EU are 1.5, 1.4, and 0.9 respective GtCO<sub>2eq</sub> lower than their solely economic emission levels, whereas India commits 3.8 GtCO<sub>2eq</sub> more than its solely economic emission level. We also propose an equal-effort cooperation scenario toward 2°C where each country reduces emissions by 28% of their solely economic levels in 2030. Through exploration of the economic trade-offs, our results suggest that more ambitious NDCs are urgently needed.</p>
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spelling oxford-uuid:c330aabb-ef4e-48b5-b78b-1585f514c71d2023-07-21T10:58:13ZSolely economic mitigation strategy suggests upward revision of nationally determined contributionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c330aabb-ef4e-48b5-b78b-1585f514c71dEnglishSymplectic ElementsElsevier 2021Yang, PMi, ZYao, Y-FCao, Y-FCoffman, DLiu, L-C<p>The use of equity principles to review the nationally determined contributions (NDCs) is critical to facilitating more ambitious climate actions. However, disagreement over the equity principles persists. We instead treat emission reduction as a solely economic behavior motivated by avoiding future economic damage from climate change. Assuming no international cooperation, we provide a solely economic mitigation pathway to review national climate pledges until 2100. Using the value in 2030 to review the NDCs, we find that the NDCs of China, the USA, and the EU are 1.5, 1.4, and 0.9 respective GtCO<sub>2eq</sub> lower than their solely economic emission levels, whereas India commits 3.8 GtCO<sub>2eq</sub> more than its solely economic emission level. We also propose an equal-effort cooperation scenario toward 2°C where each country reduces emissions by 28% of their solely economic levels in 2030. Through exploration of the economic trade-offs, our results suggest that more ambitious NDCs are urgently needed.</p>
spellingShingle Yang, P
Mi, Z
Yao, Y-F
Cao, Y-F
Coffman, D
Liu, L-C
Solely economic mitigation strategy suggests upward revision of nationally determined contributions
title Solely economic mitigation strategy suggests upward revision of nationally determined contributions
title_full Solely economic mitigation strategy suggests upward revision of nationally determined contributions
title_fullStr Solely economic mitigation strategy suggests upward revision of nationally determined contributions
title_full_unstemmed Solely economic mitigation strategy suggests upward revision of nationally determined contributions
title_short Solely economic mitigation strategy suggests upward revision of nationally determined contributions
title_sort solely economic mitigation strategy suggests upward revision of nationally determined contributions
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AT miz solelyeconomicmitigationstrategysuggestsupwardrevisionofnationallydeterminedcontributions
AT yaoyf solelyeconomicmitigationstrategysuggestsupwardrevisionofnationallydeterminedcontributions
AT caoyf solelyeconomicmitigationstrategysuggestsupwardrevisionofnationallydeterminedcontributions
AT coffmand solelyeconomicmitigationstrategysuggestsupwardrevisionofnationallydeterminedcontributions
AT liulc solelyeconomicmitigationstrategysuggestsupwardrevisionofnationallydeterminedcontributions