Over the past decade, Kieran Mulvaney led four Greenpeace expeditions to the waters surrounding Antarctica with the aim of intercepting a fleet of commercial whalers to stop their lethal practice. In The Whaling Season he explores the struggles underlying the expeditions, drawing on the history of commercial whaling and Antarctic exploration, the development of Greenpeace, and broader scientific and political efforts to conserve marine life. He vividly portrays the current struggles, and makes a plea for protection of some of the world's most spectacular creatures.