Dune erosion

The dunes at our local beach are gradually but steadily being eroded. This is entirely consistent with what is expected due to rising sea levels associated with climate change. The causes are melting ice from glaciers and ice caps, plus expansion of the ocean water as its temperature rises. As explained in this link, ocean levels have risen by about 25cm since 1880 and the rate has increased to about 3cm a decade now. No wonder the people on low-lying islands are concerned!