The document discusses several prominent environmental activists from India, including Sugathakumari, Medha Patkar, Sunderlal Bahuguna, Maneka Gandhi, and Arundhati Roy. It highlights their key causes and accomplishments, such as Sugathakumari's involvement in the "Save Silent Valley" and "save kurinji" campaigns, and Medha Patkar leading the "Narmada Bachao Andolan" movement. The document also briefly profiles international activists like Angelina Jolie and her donations to environmental causes, and Indian actor John Abraham's work with wildlife protection organizations.