Coastal defences also include soft engineering
Soft engineering strategies are schemes set up using knowledge of the sea and its processes to reduce the effects of flooding and erosion.
Here are some examples of soft engineering strategies:
1) Beach nourishment- this is when sand and shingle from elsewhere ( e.g. the offshore seabed) is added to beaches. It creates wider beahces that slow the waves. This gives greater protection from flooding and erosion. However taking material from the seabed can kill organisms like sponges and corals. It's a very expensive defence. It has to be repeated.
2) Dune regeneration- this involves creating or restoring sand dunes by either nouishment, or by planting vegetation to stabilise the sand. Sand…