In the next hundred years, the nature of water on Earth will undergo a fundamental change. Glaciers will melt, the level of the sea will rise, and its acidity will change more than it has in the past 50 million years. These changes will affect all life on earth, everyone that we know, and everyone that we love. It is more complex than the mind can comprehend, greater than all of our past experience, bigger than language. What words can grasp an issue of this magnitude? In an attempt to capture this vast issue, Andri Snær Magnason takes both a personal and a scientific approach--weaving his way through climate science via ancient legends about sacred cows, stories of ancestors and relatives, and interviews with the Dalai Lama. The resulting narrative is at once a travel story, a world history, and a reminder to live in harmony with future generations.