Some 15,000 years ago man was an unobtrusive species within the living world; this effect on the environment was relatively small and he was well adapted, like other members of the fauna, to the ecosystem of which he was part. But his brain was developing and he was becoming much more effective in making stone implements, so he began to make a greater impact on his environment. The tremendous technologies achievements of the past century brought many benefits, including a rising standard of living, but how far has our environment suffered? How far has industry polluted the air, water and land? How much is being done to keep these essential parts of the ecosystem unharnessed? The book is narrating all these problems. The book will meet the requirements of a wide range of readers who are involved directly or indirectly with environmental studies.