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The above slideshow goes through different types of sea defences. This includes Hard and Soft engineering as well as managed retreat.

Excellent animation showing coastal processes and defences - http://www.as.uky.edu/academics/departments_programs/EarthEnvironmentalSciences/EarthEnvironmentalSciences/Educational%20Materials/Documents/elearning/module14swf.swf

Videos from the BBC:
Sea defences - http://www.bbc.co.uk/learningzone/clips/coastal-management-strategies-sea-defences-and-managed-retreat/3243.html
Sea-level change and problems - http://www.bbc.co.uk/learningzone/clips/coastlines-affected-by-sea-level-change-isostasy/4025.html
Managed retreat - http://www.bbc.co.uk/learningzone/clips/managed-retreat-to-counter-the-impact-of-rising-sea-levels/3194.html

In the slideshow below is information on case studies which feature sea defence issues such as:
  • Hard engineering at Lyme Regis
  • Soft engineering/managed retreat at Happisburgh