The human impact on the environment is understood from the scientific study of anthropocene. It is a proposed epoch in Earth's history characterized by significant human influence on Earth's geology, ecosystems and climate. The loss of biodiversity is due to an accelerated rate of species extinction. This is witnessed through the massive decline of marine phytoplankton in the world's oceans and decrease in algal biomass. Other aspects of human impacts include the large-scale migration of species, rise in global and ocean temperatures, etc. This is caused by human overpopulation, overconsumption, intensive fishing and farming, etc. This book is a compilation of chapters that discuss the most vital concepts to understand the effects of human activities on the environment. It contains some path-breaking studies in this field. It will serve as a valuable source of reference for all experts and students.