Synopsis The rapid changes and development in all walks of mankind gave the birth to the disequilibrium in the Environment. Scientific discoveries and developments are degrading the health of ecosystem. Since the beginning of the human civilization, mankind has lived in a competitive relationship with nature. His relentless, pursuits of progress, comfort and security has resulted in increased stress on the environment. Human tendency to exert a negative influence on ecology has resulted in to rapid increase of green house gasses, large scale deforestation, loss of bio-diversity and Environmental Pollution. Its leading to ecological crisis and affecting the entire life and life support system existing on our planet Earth. There is a great need of Eco-friendly outgoing engagement of men with nature. An environmental study is multi-dimensional field; its ingredients are physical, biological, chemical, socio and psychological. Human existence could not be assumed without the balance between men and his environment. So, Environmental Education emerged as an independent field of study to make the people aware about the issues, concerns and problems related with the environment. This edition through the light on all the aspects related with the environmental education: Its approaches, elements, methods, curriculum, nature, sustainable development, ethical issues and researches related to Environmental Education.