Turning Rain, Ice and Trees into Ephemeral Works

British artist Andy Goldsworthy works in the fields and forests near his home in Scotland using natural elements as his media. His pieces have a tendency to collapse, decay and melt, but, as he tells Fresh Air's Terry Gross, "It's not about art. It's just about life and the need to understand that a lot of things in life do not last." Here he talks about his photography book, how he creates his art and more.