geologist robin mcinnes says it's due in part to climate change.t there's little money to combat the effects. there's no saving some roads, such as the old blackgang road, which collapsed in 1928. >> on the other side of the road in blackgang chine, the owners of the famous amusement park have accepted their precarious situation. the dinosaurs have survived the odd landslip. and they're always on the alert. the park has lost attractions to the sea several times over the course of its history. giving up. they even have plans for new construction behind the present location. dominic way, park manager: the coastal erosion is not something that will happen all of a sudden. it does happen over a long period of time. over quite a few number of years. basically what will happen is that we will see different aspects of the cliff move, and that is normally an indication that it's likely there is to be some movement further later on in the year. >> the excursion boat to the needles is starting to turn back. teresa castle has been visiting the island for 30 y