Academic Journal
Significant climate benefits from near-term climate forcer mitigation in spite of aerosol reductions
| العنوان: | Significant climate benefits from near-term climate forcer mitigation in spite of aerosol reductions |
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| المؤلفون: | Robert J Allen, Larry W Horowitz, Vaishali Naik, Naga Oshima, Fiona M O’Connor, Steven Turnock, Sungbo Shim, Philippe Le Sager, Twan van Noije, Kostas Tsigaridis, Susanne E Bauer, Lori T Sentman, Jasmin G John, Conor Broderick, Makoto Deushi, Gerd A Folberth, Shinichiro Fujimori, William J Collins |
| المصدر: | Environmental Research Letters, Vol 16, Iss 3, p 034010 (2021) |
| بيانات النشر: | IOP Publishing, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering LCC:Environmental sciences LCC:Science LCC:Physics |
| مصطلحات موضوعية: | NTCF, SLCF, aerosol, ozone, methane, mitigation, Environmental technology. Sanitary engineering, TD1-1066, Environmental sciences, GE1-350, Science, Physics, QC1-999 |
| الوصف: | Near-term climate forcers (NTCFs), including aerosols and chemically reactive gases such as tropospheric ozone and methane, offer a potential way to mitigate climate change and improve air quality—so called ‘win-win’ mitigation policies. Prior studies support improved air quality under NTCF mitigation, but with conflicting climate impacts that range from a significant reduction in the rate of global warming to only a modest impact. Here, we use state-of-the-art chemistry-climate model simulations conducted as part of the Aerosol and Chemistry Model Intercomparison Project (AerChemMIP) to quantify the 21st-century impact of NTCF reductions, using a realistic future emission scenario with a consistent air quality policy. Non-methane NTCF (NMNTCF; aerosols and ozone precursors) mitigation improves air quality, but leads to significant increases in global mean precipitation of 1.3% by mid-century and 1.4% by end-of-the-century, and corresponding surface warming of 0.23 and 0.21 K. NTCF (all-NTCF; including methane) mitigation further improves air quality, with larger reductions of up to 45% for ozone pollution, while offsetting half of the wetting by mid-century (0.7% increase) and all the wetting by end-of-the-century (non-significant 0.1% increase) and leading to surface cooling of −0.15 K by mid-century and −0.50 K by end-of-the-century. This suggests that methane mitigation offsets warming induced from reductions in NMNTCFs, while also leading to net improvements in air quality. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1748-9326 |
| Relation: | https://doaj.org/toc/1748-9326 |
| DOI: | 10.1088/1748-9326/abe06b |
| URL الوصول: | https://doaj.org/article/e976543c67c94ba49c0acd28dd7efb4a |
| رقم الانضمام: | edsdoj.976543c67c94ba49c0acd28dd7efb4a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17489326 |
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| DOI: | 10.1088/1748-9326/abe06b |