Synopsis The present book New Dimensions of Environmental Biology has been written especially to suit the need of undergraduate and post graduate students of the Indian Universities. It also provides good and latest knowledge for most of the competitive examinations like CSIR, NET, SLET, IAS, IPS, RAS etc. A large number of multiple choice type questions also make a part of this book and it serves the requirements not only of the syllabus but also to the general unquisitiveness of the public. An effort has been made to present the subject matter in an easy and lucid manner, incorporating appropriate illustrations. The subject matter has been derived from various authentic sources including books and specific journals, to all of which the authors express their gratefulness.