What are the pros and cons of groynes?

Answer 1

is that groynes deprive beaches further up the beach of sediment and materials that coasts use for protection against erosional processes. This can lead to cliff collapse and plummeting house prices and destruction of private land etc.

Another simple answer is that there are certain visual pollution debates as to whether they are an attractive thing to put on Britain's beaches (Y) ..x

hope this helped

Answer 2

The disadvantages of groynes are:

• Likely to cause down drift erosion if beach is not managed.
• They are very costly, and questions are being asked in many cases whether they are actually worth the money.
• Tampering with nature could, in time, become worse than the original problem.
• They can cause problems further down the coast. One such example could be seen where groynes are used to trap sediment. Further down the coast there could be a reduction in the amount of material available to protect the coast there. This in turn would mean an increased amount of coastal erosion.
• It is spoils the landscape sightseeing