Adaptation to sea level rise in France

IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Rendiconti Lincei-Scienze Fisiche E Naturali Pub Date : 2024-03-18 DOI:10.1007/s12210-024-01225-0
Gonéri Le Cozannet, Anny Cazenave
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Abstract

Sea level rise due to climate change is an ongoing process that will continue for centuries and millennia. In response to this, France is increasingly considering sea level rise in its coastal risks and land use policies. Here, we show that despite real progress in coastal adaptation policies made so far, major challenges remain. We report progress regarding the consideration of ongoing erosion and flooding during storms, in particular owing to an evolving national regulation increasingly supporting the implementation of a nationally defined integrated coastal zones management strategy. Yet, chronic flooding at high-tides in ports and cities expected to emerge in the 2030s, as well as permanent flooding and shoreline retreat projected to take place within centuries without major protection works remain largely unaddressed to date. Major questions remain in terms of adaptation finance and other measures supporting coastal adaptation such as climate services. Finally, the topic of coastal adaptation lacks connections with the broader context of transformations needed to address climate change, biodiversity losses, and meet the sustainable development goals. The case of France exemplifies how an evolving adaptation planning, which takes decades to implement, can ultimately fall short of effectively addressing major transformational challenges and achieving climate resilient development. We argue that a clear and transparent public debate on climate change and the nature of solutions could help bridge the gap between ongoing adaptation and transformative measures in line with the challenges.

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法国适应海平面上升
气候变化导致的海平面上升是一个持续的过程,将持续数百年乃至上千年。为此,法国在其沿海风险和土地利用政策中越来越多地考虑到海平面上升问题。在此,我们表明,尽管迄今为止在沿海适应政策方面取得了实际进展,但仍然存在重大挑战。我们报告了在考虑风暴期间的持续侵蚀和洪水方面取得的进展,这主要归功于不断发展的国家法规日益支持实施国家确定的沿海地区综合管理战略。然而,预计 2030 年代将出现的港口和城市涨潮时的长期洪水,以及预计在几个世纪内如果不实施重大保护工程就会出现的永久性洪水和海岸线退缩问题,迄今为止在很大程度上仍未得到解决。在适应资金和支持沿海适应的其他措施(如气候服务)方面仍然存在重大问题。最后,沿海地区的适应问题与应对气候变化、生物多样性丧失和实现可持续发展目标所需的更广泛的变革背景缺乏联系。法国的例子说明,需要数十年才能实施的不断发展的适应规划,最终可能无法有效应对重大转型挑战,实现气候适应性发展。我们认为,就气候变化和解决方案的性质进行清晰透明的公开辩论,有助于弥合正在进行的适应措施与应对挑战的转型措施之间的差距。
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来源期刊
Rendiconti Lincei-Scienze Fisiche E Naturali
Rendiconti Lincei-Scienze Fisiche E Naturali MULTIDISCIPLINARY SCIENCES-
CiteScore
4.10
自引率
10.00%
发文量
70
审稿时长
>12 weeks
期刊介绍: Rendiconti is the interdisciplinary scientific journal of the Accademia dei Lincei, the Italian National Academy, situated in Rome, which publishes original articles in the fi elds of geosciences, envi ronmental sciences, and biological and biomedi cal sciences. Particular interest is accorded to papers dealing with modern trends in the natural sciences, with interdisciplinary relationships and with the roots and historical development of these disciplines.
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