Here is a book for everyone who has an interest in how our planet works, what has happened during its 4,550 million year history and what might happen in the future. It tells how Earth scientists study the pattern of events that have shaped the planet and guided the evolution of life on Earth. In clear and simple language The Key to The Future: The History of Earth Science describes how the effects of these events are measured and the careful detective work needed to unravel the extraordinary complexity of Earth history. The latest advances in dating methods, including the detection of regular patterns of global climate change, are explained and illustrated with real case histories.