The Arctic is changing rapidly in response to changes in global climate and economic activity and yet much of it remains unexplored with modern scientific techniques. Jeff Bowman describes his group's work in the Arctic as they seek to understand the ecological implications of changing sea ice conditions, and prepare to participate in the MOSAiC expedition; an unprecedented multi-national effort to study the high Arctic across a complete seasonal cycle. Series: "Jeffrey B. Graham Perspectives on Ocean Science Lecture Series" [Science] [Show ID: 34635]