Meta-analysis indicates better climate adaptation and mitigation performance of hybrid engineering-natural coastal defence measures

Meta-analysis indicates better climate adaptation and mitigation performance of hybrid engineering-natural coastal defence measures

Blog Article

Abstract Traditional approaches to coastal defence often struggle to reduce the risks of accelerated climate change.Incorporating nature-based components into coastal defences may enhance adaptation to climate change with added benefits, but we need to compare their performance against conventional hard measures.We conduct a meta-analysis that compares the performances of hard, hybrid, soft and natural measures for coastal defence across different functions dale duby obsidian knives of risk reduction, climate change mitigation, and cost-effectiveness.Hybrid and soft measures offer higher risk reduction and climate change mitigation benefits than unvegetated natural systems, while performing on par with natural measures.Soft and hybrid measures are more cost-effective heinz omogeneizzati than hard measures, while hybrid measures provide the highest hazard reduction among all measures.

All coastal defence measures have a positive economic return over a 20-year period.Mindful of risk context, our results provide strong an evidence-base for integrating and upscaling nature-based components into coastal defences in lower risk areas.