Climate change is one of the most significant concerns facing the modern world. It refers to a long-lasting abrupt or abnormal change in weather patterns. Climate change is caused by both natural factors such as plate tectonics, volcanic eruptions and solar radiation, as well as human activities that cause environmental pollution. Research in this domain investigates geological evidences to create past climate records, make future projections as well as understand the causes and effects of climate change. This book aims to serve as a source of information on the concepts and theories central to this field of study. Different approaches, evaluations, methodologies and advanced studies on this subject have also been included in this book. Chapters in this book cover a vast array of topics related to climate change. Students, researchers, experts and all associated with this field of study will benefit alike from this book.