Global warming refers to the phenomenon of increase in the average air temperatures near the surface of the Earth over the past few centuries. Human activities since the beginning of the Industrial Revolution are the driving factors behind the accelerated climate change. Activities such as deforestation and burning of fossil fuel lead to an increase in the concentration of greenhouse gases which in turn leads to heat getting trapped in the atmosphere. The rise of the global average temperature has resulted in significant societal, economic and ecological damage. Continued rise in temperature can lead to increased extinction of many plant and animal species, shifts in agricultural patterns and rising sea levels. This book explores all the important aspects of global warming in the present day scenario. Different approaches, evaluations, methodologies and advanced studies on this field have been included herein. This book will help new researchers by foregrounding their knowledge in this branch.