Writing India?s environmental history is not easy. The country?s territorial vastness, geographical complexity, and unusual biodiversity make the task difficult. Relatively few scholars have shown the historical range and intellectual depth required to tackle the area compellingly and with sophistication. Mahesh Rangarajan is among the foremost scholars in this field. The papers and books he has written or edited over more than two decades have helped craft and enlarge Indian environmental thought as a whole. They have established his reputation as a stimulating and wide-ranging historian-thinker in the discipline. The present collection comprises ten essays showcasing the core of Rangarajan?s thought and interventions. They include comparisons of the subcontinent with the world beyond, most specially with societies in Asia and Africa once under Western domination. They also include studies of specific historical conjunctures under regimes such as those of Jawaharlal Nehru and Indira Gandhi, Jomo Kenyatta and Julius Nyerere.