If the ocean water around Antarctica is salt water, and we use salt to melt ice on our roads in winter, why doesn t the ocean water melt the ice of Antarctica?
Trevor, Frances and Lizzie Skinner, Midhurst, Sussex Salt in the ocean or on icy roads helps to lower the temperature at which the water freezes, it doesn t prevent freezing altogether. Even the ocean can freeze if is cold enough, and it does near Antarctica. On roads, salt lowers the freezing point a few degrees which is enough to melt the ice if it is around the freezing temperature of water (0C).
