From political pledges to quantitative mapping of climate mitigation plans: Comparison of two European cities

Carbon Balance and Management

Research

Rianne Droge¹  Hugo Denier van der Gon¹  Giorgia Fleischmann²  Patrick Aigner³  Thomas Lauvaux⁴  Philippe Ciais⁵  Ivonne Albarus⁶  Jinghui Lian⁶  Miguel Andrey Narvaez Rincon⁷  Hervé Utard⁷ 

[1] Department of Climate, Air and Sustainability, TNO, Utrecht, The Netherlands;Economics and Political Science, SciencesPo, Paris, France;Environmental Sensing and Modeling, Technical University of Munich (TUM), Munich, Germany;GSMA, UMR 7331, University of Reims Champagne Ardenne, Reims, France;Laboratoire des Sciences du Climat et de l’Environnement (LSCE), IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 91191, Gif sur Yvette Cedex, France;Laboratoire des Sciences du Climat et de l’Environnement (LSCE), IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, 91191, Gif sur Yvette Cedex, France;Origins.earth, Suez Group, 92040, Paris La Défense, France;Origins.earth, Suez Group, 92040, Paris La Défense, France;

关键词: Climate action plan;    Greenhouse gases;    Fossil fuel emissions;    Urban planning;    Climate neutrality;    Emission inventory;   

DOI  :  10.1186/s13021-023-00236-y

 received in 2022-12-02, accepted in 2023-08-20,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundUrban agglomerates play a crucial role in reaching global climate objectives. Many cities have committed to reducing their greenhouse gas emissions, but current emission trends remain unverifiable. Atmospheric monitoring of greenhouse gases offers an independent and transparent strategy to measure urban emissions. However, careful design of the monitoring network is crucial to be able to monitor the most important sectors as well as adjust to rapidly changing urban landscapes.ResultsOur study of Paris and Munich demonstrates how climate action plans, carbon emission inventories, and urban development plans can help design optimal atmospheric monitoring networks. We show that these two European cities display widely different trajectories in space and time, reflecting different emission reduction strategies and constraints due to administrative boundaries. The projected carbon emissions rely on future actions, hence uncertain, and we demonstrate how emission reductions vary significantly at the sub-city level.ConclusionsWe conclude that quantified individual cities’ climate actions are essential to construct more robust emissions trajectories at the city scale. Also, harmonization and compatibility of plans from various cities are necessary to make inter-comparisons of city climate targets possible. Furthermore, dense atmospheric networks extending beyond the city limits are needed to track emission trends over the coming decades.

【 授权许可】

CC BY   
© Springer Nature Switzerland AG 2023

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