The over-exploitation of the Earth’s resources has brought about an unsustainable situation where biodiversity and ecological balance are under dire threat. But the most immediate concern is global warming, caused by high anthropogenic emission of carbon dioxide in the atmosphere. Global warming is upsetting the climate pattern. Climate change is threatening the Earth with severe drought and floods, storms, and cyclones; rising sea levels from the general warming of sea water and melting of glacial and Arctic ice; inundation of low coastal areas by the rising sea; disruption in the agricultural crop pattern; and serious problems with regard to availability of fresh water. With the prescience of all these serious challenges facing the earth, the book attempts to engage the learned, researchers, graduate students, and social activists and work for the mitigation of and adaptation with global warming and climate change.