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Building sea defences
A conflict of interest?
Look at this area of natural beauty between Penarth and Porthkerry
NGfL CYMRUGCaD
NGfL CYMRUGCaD
Choose your role
• Local resident
• Council representative
• Conservationist
• Tourist board officer
• Developers
• People who use the land for leisure
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The problem
• The coastline here has been badly affected by erosion.
• Houses and property are threatened.
• The cost of redevelopment is high
• The area is an area of scientific interest.
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Costs of coastal defence
• Groynes £15,000 each
• Seawalls £10,000 a metre
• Beach rebuilding £5.00 a cubic metre
• Rip Rap £4,000 a metre
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Questions
• Does this area need coastal defence?• What are the arguments in favour of
coastal defence?• What arguments are against coastal
defence?• What sort of defences might be built that
have little impact on the environment?• What sort of defences would be cheap to
build?
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