This book is the starting point of the series. It focuses on the Arctic and Antarctic glacial cycle, the earth's "water storage master switch", and reveals how the formation and melting of polar ice caps reshape the global geographical pattern through sea level rise and fall. From the exposure of the continental shelf during the last glacial period to the rise of sea levels during the melting period, this book closely connects the polar ice age with the geographical base of unknown areas of the earth such as Bermuda and Sanxingdui, laying an unshakable scientific foundation for subsequent dual-branch derivation (pure natural laws/possibility of extraterrestrial civilization). This book does not seek novelties or make assumptions. It takes the geological laws of the earth as the core and builds a set of scalable and verifiable logical interpretation framework, allowing readers to understand that all unknown phenomena on the earth have their geographical origins shaped by the polar ice age.
