These scientists further said that atmosphere, oceans, soil, forests and various forms of life are all under immense pressure from the ravaged environment and by the year 2100 Up to one-third of the various life forms on Earth may disappear. Many ways of present way of life of man are destroying the possibilities of secure life in future and can change this living world so much that the existence of life as we know it becomes difficult. These eminent scientists insisted that a fundamental change is needed to stop this catastrophe of nature.