This book provides biographical profiles of 11 environmental leaders of interest to readers ages 9 and above and was created to appeal to young readers in a format they can enjoy reading and readily understand. Biographies were prepared after extensive research, and each volume contains a cumulative index, a general index, a place of birth index, and a birthday index. Each entry provides at least one picture of the individual profiled, and bold-faced rubrics lead the reader to information on birth, youth, early memories, education, first jobs, marriage and family, career highlights, memorable experiences, hobbies, and honors and awards. All of the entries end with a list of easily accessible sources designed to lead the student to further reading on the individual. Environmentalists profiled in the book are: John Cronin (1950-); Dai Qing (1941-); Ka Hsaw Wa (1970-); Winona LaDuke (1959-); Aldo Leopold (Retrospective) (1887-1948); Bernard Martin (1954-); Cynthia Moss (1940-) ); John Muir (Retrospective) (1838-1914); Gaylord Nelson (1916-); Douglas Tompkins (1943-); and Hazel Wolf (Obituary) (1898-2000). (BT)