Coasts are dynamic and attractive living environments, constantly shaped by natural forces such as waves, wind, and tides. Nearly 11% of the world’s population lives in coastal settlements. These regions are of high relevance for regional economies and connectivity. However, due to the projected — yet locally difficult to predict — rise in sea levels and the increase in extreme weather events, coastal cities are particularly affected by the challenges of climate change. In recent years, extreme weather events such as heavy rainfall, storm surges, and prolonged precipitation have posed significant challenges for German coastal cities like Hamburg and Bremen.
Research in the field of “Climate, Coasts, and Water” focuses on developing effective adaptation strategies to enhance the resilience of coastal cities to the impacts of climate change. Innovative technologies and nature-based solutions — such as the restoration of mangrove forests and the creation of floodplains — are being explored to maximize both ecological and economic benefits. The development of measures such as dike construction, flood protection systems, and natural barriers aims to safeguard (coastal) cities.
A central research topic is also the exploration of potential retreat strategies, which may become inevitable for particularly vulnerable coastal regions. This includes the planned and managed withdrawal from endangered areas, the relocation of populations, and the redesign of urban spaces. These strategies seek to balance social, economic, and ecological considerations to ensure a just and sustainable transformation. In doing so, not only is the protection of coastal populations prioritized, but also the preservation and enhancement of ecosystem services.
