It is not only tourism that has had an impact on the environment of Mont St Michel. Human activity has led to sediment building up around the Mont as humans have attempted to reclaim the land. The causeway, on which the car park is now situated spoils the environment and has added to the development of mud flats around the structure. If nothing is done, it is estimated that in 30 years' time the Mont will be surrounded by salt marshes.
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Evidence Log 5: Complete the 'Human Impact' exercise in your Evidence Log