How do we manage the shifting sands of our changing coastline?

Australia is blessed with majestic coastlines and most Australians live near the coast, but in a number of these communities that coastline is changing. Beaches around Australia are at risk of disappearing with climate change resulting in severe weather systems that lash up and down the coastline and erode the landscape. From Newcastle in New South Wales, to Wyomi on the Limestone Coast in South Australia, to Inverloch in Victoria - are all trying different ways to hold back the power of the ocean. So what can be done about it? And who is responsible for fixing a growing problem. And importantly who is responsible for footing the bill?