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Cet article présente une étude des représentations sociales (RS) liées aux risques côtiers (érosion, submersion) qui s’inscrit dans un projet d’analyse de la vulnérabilité des territoires littoraux cherchant à optimiser les stratégies de gestion de ces risques. Une enquête qualitative a été menée auprès de 22 habitants et gestionnaires de communes littorales, en parallèle d’une analyse de presse. Les résultats mettent en évidence une évolution des discours, notamment depuis la tempête Xynthia (2010). Aujourd’hui les propos sont davantage axés sur les mesures de prévention que sur la description d’un phénomène. Ces résultats montrent l’influence des médias sur la construction des RS et le rôle essentiel de l’ancrage territorial sur la construction des RS.

Coastal flooding risks are becoming increasingly important because of the increasing vulnerability of coastal territories and the rise of ocean levels in relation to climate change. Studying the adaptation to these phenomena requires taking into account the coping strategies (problem-focused or emotional-focused coping) implemented by the inhabitants of the exposed territories. A theoretical model of situational and dispositional factors determining these strategies has been proposed and tested empirically with 583 inhabitants of the island of Guadeloupe, which is exposed to said coastal flooding risk. The fit index confirms the adequacy of the model. The results indicate that coastal flooding risk perception, difficulties to regulate emotions, and place attachment predict avoidance coping. Vigilant coping is only predicted by perceived action efficiency. The roles of duration of residence and distance from the sea have been highlighted.

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Purpose Based on social representation theory, this study aims to evaluate and analyze the similarities and differences between social representations of climate change held by people living in two territories, which have in common that they are exposed to coastal risks but have different socio-cultural contexts: on the one hand, Cartagena (Colombia) and on the other, Guadeloupe (French overseas department, France). Design/methodology/approach A double approach, both quantitative and qualitative, of social representation theory was adopted. The data collection was undertaken in two phases. First, the content and organization of social representation of climate change (SRCC) was examined with a quantitative study of 946 participants for both countries, followed by a qualitative study of 63 participants for both countries also. Findings The study finds unicity in the SRCC for the quantitative study. In contrast, the qualitative study highlights differences at the level of the institutional anchoring of the climate change phenomenon in these two different socioeconomic and political contexts. Practical implications These results are relevant for a reflection in terms of public policies for the prevention and management of collective natural risks, as well as for the promotion of ecological behavior adapted to political and ideological contexts. Originality/value The use of a multi-methodological approach (quantitative and qualitative) in the same research is valuable to confirm the importance of an in-depth study of the social representations of climate change because of the complexity of the phenomenon.

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