Synopsis The environment of the world has changed dramatically and drastically for last four decades. Environmental pollution has increased tremendously in the last three decades. Green-berf is decreasing regularly. It is due to explosion of human population unplanned industrialisation, motorisation, mechanisation and colonisation. We have more enough natural resources to fulfil our requirements but unplanned way of their use is creating problems. Disastrous conditions of the environment are alarming the whole world to take it seriously. This book "Environment: Global Changes and Challenges" has 17 invited articles of well known workers in different fields of environment. Every article is focusing the matter of problems and their solutions for sustainable development. The book has new ideas, references and policies.