What are the negative effects of a seawall?

Answer 1

Seawalls can lead to increased erosion of adjacent shorelines as they disrupt natural sediment transport processes, often resulting in loss of beach areas. They can also create a false sense of security, encouraging development in vulnerable coastal zones. Additionally, seawalls may negatively impact local ecosystems by altering habitats and reducing biodiversity, as they often replace natural shorelines with hard surfaces. Finally, the construction and maintenance of seawalls can be costly and may divert funding from more sustainable coastal management solutions.