Earth System Dynamics
Earth System Dynamics
ESD
Articles | Volume 15, issue 6
Articles | Volume 15, issue 6
https://doi.org/10.5194/esd-15-1527-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esd-15-1527-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 6
ESD Letters
 | Highlight paper
 | 
28 Nov 2024
ESD Letters | Highlight paper |  | 28 Nov 2024

Modeling 2020 regulatory changes in international shipping emissions helps explain anomalous 2023 warming

Ilaria Quaglia and Daniele Visioni

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This paper qualifies as an ESD letter because it presents highly relevant results of the impact on shipping emissions on temperature trends.
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Short summary
On 1 January 2020, international shipping vessels were required to substantially reduce the amount of particulate they emit to improve air quality. In this work we demonstrate how this regulatory change contributed to the anomalous warming observed in recent months using climate model simulations that include such a change. Future policies should also perhaps consider their impact on climate, and climate modelers should promptly include those changes in future modeling efforts.
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