Promoting Stakeholders’ Support for Marine Protection Policies: Insights from a 42-Country Dataset

Stakeholders’ support is essential for the effective and successful implementation of policies that prioritize enhancing and preserving ocean and coastal ecosystems. However, cross-national studies examining factors influencing stakeholders’ policy support are still lacking. The current study aimed to provide preliminary evidence on factors (e.g., socio-demographic factors, country income levels, and perceived impacts of marine and coastal ecosystems) that affect stakeholders’ endorsement of a policy centered on preserving marine and coastal ecosystems. To conduct the study, we applied the Bayesian Mindsponge Framework (BMF) to a dataset of 709 stakeholders from 42 countries generated by MaCoBioS—a research project funded by the European Commission Horizon 2020. The BMF allowed us to adopt a distinctive and innovative approach to analyzing the data and drawing valuable policy development and implementation insights. The results show no differences in policy endorsement levels across stakeholders with different ages, education, and country income levels. However, female stakeholders tended to support the policy prioritizing ocean protection more than their male counterparts. Stakeholders perceiving the impacts of marine and coastal ecosystem preservation on human wellbeing, climate and weather, and climate change reduction also tended to support the policy more strongly. Meanwhile, the perceived impacts of ocean and coastal ecosystems on global and local economies had an ambiguous effect on stakeholders’ policy support. Based on these findings, we suggest that raising the awareness and knowledge of stakeholders can help improve their support for ocean and coastal preservation policies. Moreover, it is necessary to concentrate more on communicating the adverse consequences induced by the ocean and coastal ecosystems’ loss (e.g., climate change and health) and less on the economic aspects. The study underscores the significance of environmental education and awareness-raising campaigns in disseminating environmental information and cultivating an eco-surplus culture. This culture inspires stakeholders to actively participate in environmental conservation efforts, going beyond mere sustainability and aiming to create positive environmental impacts.