Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement
To limit global warming to well below 2°C in accord with the Paris Agreement, countries throughout the world have submitted their Intended Nationally Determined Contributions (INDCs) outlining their greenhouse gas (GHG) mitigation actions in the next few decades. However, it remains unclear what the...
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fthindawi:oai:hindawi.com:10.1155/2018/2487962 2023-05-15T15:11:28+02:00 Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement Fang Wang Katarzyna B. Tokarska Jintao Zhang Quansheng Ge Zhixin Hao Xuezhen Zhang Maowei Wu 2018 https://doi.org/10.1155/2018/2487962 en eng Advances in Meteorology https://doi.org/10.1155/2018/2487962 Copyright © 2018 Fang Wang et al. Research Article 2018 fthindawi https://doi.org/10.1155/2018/2487962 2019-05-26T10:02:48Z To limit global warming to well below 2°C in accord with the Paris Agreement, countries throughout the world have submitted their Intended Nationally Determined Contributions (INDCs) outlining their greenhouse gas (GHG) mitigation actions in the next few decades. However, it remains unclear what the resulting climate change is in response to the proposed INDCs and subsequent emission reductions. In this study, the global and regional warming under the updated INDC scenarios was estimated from a range of comprehensive Earth system models (CMIP5) and a simpler carbon-climate model (MAGICC), based on the relationship of climate response to cumulative emissions. The global GHG emissions under the updated INDC pledges are estimated to reach 14.2∼15.0 GtC/year in 2030, resulting in a global mean temperature increase of 1.29∼1.55°C (median of 1.41°C) above the preindustrial level. By extending the INDC scenarios to 2100, global GHG emissions are estimated to be around 6.4∼9.0 GtC/year in 2100, resulting in a global mean temperature increase by 2.67∼3.74°C (median of 3.17°C). The Arctic warming is projected to be most profound, exceeding the global average by a factor of three by the end of this century. Thus, climate warming under INDC scenarios is projected to greatly exceed the long-term Paris Agreement goal of stabilizing the global mean temperature at to a low level of 1.5‐2.0°C above the pre-industrial. Our study suggests that the INDC emission commitments need to be adjusted and strengthened to bridge this warming gap. Article in Journal/Newspaper Arctic Climate change Global warming Hindawi Publishing Corporation Arctic Advances in Meteorology 2018 1 9 |
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To limit global warming to well below 2°C in accord with the Paris Agreement, countries throughout the world have submitted their Intended Nationally Determined Contributions (INDCs) outlining their greenhouse gas (GHG) mitigation actions in the next few decades. However, it remains unclear what the resulting climate change is in response to the proposed INDCs and subsequent emission reductions. In this study, the global and regional warming under the updated INDC scenarios was estimated from a range of comprehensive Earth system models (CMIP5) and a simpler carbon-climate model (MAGICC), based on the relationship of climate response to cumulative emissions. The global GHG emissions under the updated INDC pledges are estimated to reach 14.2∼15.0 GtC/year in 2030, resulting in a global mean temperature increase of 1.29∼1.55°C (median of 1.41°C) above the preindustrial level. By extending the INDC scenarios to 2100, global GHG emissions are estimated to be around 6.4∼9.0 GtC/year in 2100, resulting in a global mean temperature increase by 2.67∼3.74°C (median of 3.17°C). The Arctic warming is projected to be most profound, exceeding the global average by a factor of three by the end of this century. Thus, climate warming under INDC scenarios is projected to greatly exceed the long-term Paris Agreement goal of stabilizing the global mean temperature at to a low level of 1.5‐2.0°C above the pre-industrial. Our study suggests that the INDC emission commitments need to be adjusted and strengthened to bridge this warming gap. |
format |
Article in Journal/Newspaper |
author |
Fang Wang Katarzyna B. Tokarska Jintao Zhang Quansheng Ge Zhixin Hao Xuezhen Zhang Maowei Wu |
spellingShingle |
Fang Wang Katarzyna B. Tokarska Jintao Zhang Quansheng Ge Zhixin Hao Xuezhen Zhang Maowei Wu Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement |
author_facet |
Fang Wang Katarzyna B. Tokarska Jintao Zhang Quansheng Ge Zhixin Hao Xuezhen Zhang Maowei Wu |
author_sort |
Fang Wang |
title |
Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement |
title_short |
Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement |
title_full |
Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement |
title_fullStr |
Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement |
title_full_unstemmed |
Climate Warming in Response to Emission Reductions Consistent with the Paris Agreement |
title_sort |
climate warming in response to emission reductions consistent with the paris agreement |
publisher |
Advances in Meteorology |
publishDate |
2018 |
url |
https://doi.org/10.1155/2018/2487962 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming |
genre_facet |
Arctic Climate change Global warming |
op_relation |
https://doi.org/10.1155/2018/2487962 |
op_rights |
Copyright © 2018 Fang Wang et al. |
op_doi |
https://doi.org/10.1155/2018/2487962 |
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Advances in Meteorology |
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2018 |
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1 |
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9 |
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1766342305600503808 |