[applause] thanks all of you for coming out on this balmy evening for a conversation on the history of a very cold place. We are proud to present jon gertners new book the ice at the end of the world an epic journey into greenlandb buried past and our perilous future which tells the story of how people have encountered, muddied, settled and then unsettled by the great ice sheet thatcovers greenland , the World Largest island and of what changes to the ice sheet and tell us about the ongoing impact of Global Warming on sea levels and what it threatens the future of civilization. My name is, horse kimono, director of the Coleman Center. Take this moment to silence your cell phones. Before we begin tonight program we really must take a moment to reflect on some recent news. Last friday as many of you know, louis coleman, our founding benefactor and friend died. He was 100 years old. It was his and his wifes dorothys ingenious generosity that made this center possible. It was in fact dorot