For as long as I can remember, I’ve seen myself as a storyteller; I started university as an English major, imagining a career as a writer. But along the way, I took a geology class, where I discovered a new kind of story: the story of Earth’s climate history, recorded in the fossils and strata that collect at the bottom of the sea. It astonished me to learn that some chapters of that history, such as Antarctica’s response to higher CO2, were the subject of fierce debate. Helping fill that gap felt like the most important story I could write.