Coastal areas, especially deltas, are some of the most urbanized territories in the world. Historically, the natural richness and strategic location of these areas resulted attractive for human settlements worldwide. However, these areas are also highly vulnerable due to rapid and unplanned urbanization, land use changes, and extreme climate events. There is an international consensus on the need for new strategies for sustainable development to help cities to mitigate the effects of climate change, as well as adapt to new changing conditions in a context of increasing uncertainty. This paper will explore the specific aspects of urban deltas and coastal areas, from a complexity-based approach, and analyse Nature-based Solutions as alternatives towards sustainable development in these areas.
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