An internationally recognized scientist shows that Earth’s separate continents, once together in Pangea, are again on a collision course.

You’ve heard of Pangea, the single landmass that broke apart some 175 million years ago to give us our current continents, but what about its predecessors, Rodinia or Columbia? These “supercontinents” from Earth’s past provide evidence that land repeatedly joins and separates. While scientists debate what that next supercontinent will look like—and what to name it—they all agree: one is coming.

In this engaging work, geophysicist Ross Mitchell invites readers to remote (and sometimes treacherous) lands for evidence of past supercontinents, delves into the phenomena that will birth the next, and presents the case for the future supercontinent of Amasia, defined by the merging of North America and Asia. Introducing readers to plate tectonic theory through fieldwork adventures and accessible scientific descriptions, Mitchell considers flows deep in the Earth’s mantle to explain Amasia’s future formation and shows how this developing theory can illuminate other planetary mysteries. He then poses the inevitable question: how can humanity survive the intervening 200 million years necessary to see Amasia?

An expert on the supercontinent cycle, Mitchell offers readers a front-row seat to a slow-motion mystery and an ongoing scientific debate.

"This lovely book, though, is a story of how quickly we are changing what it is we know, how we think, and how we think about how we think. And what it is we value most. None of our descendants will survive long enough to see any practical effects of tectonic change. The reshaping of the continents will not matter to our species. We will not be there. We are not an especially careful mammal. If we are lucky, maybe we have a million years to go, maybe even two. But this book is not about that. It is ultimately about science, as the new religion of our times, and how we think of eternity. It is about us, and what we are becoming." - Resurgence & Ecologist

"Although Mitchell’s destination is the distant future, don’t be fooled. His book is as much a romp through the past as it is a look ahead, complete with references unique to the present....Throughout the book, Mitchell’s clear explanations and carefully chosen images help make sense of even the most complicated concepts." - Science News

"Locked in rocks, mountains, and oceans lies evidence of an ancient, active earth. Subduction, plate tectonics, and volcanic activity continually reshape continents. . . . [Those] interested in geology and geophysics will appreciate Mitchell’s compelling vision and research." - Booklist