Mabel Loomis Todd was a pioneering conservationist and author who played a crucial role in establishing the Audubon Society, a leading organization dedicated to bird conservation.

Rachel Carson's book 'Silent Spring' brought public attention to the harmful effects of pesticides, leading to increased awareness and regulations on their use.

Wangari Maathai, a Kenyan environmentalist and Nobel Peace Prize laureate, founded the Green Belt Movement, which has played a significant role in reforestation and community development in Kenya.

Dian Fossey was an American primatologist and conservationist who dedicated her life to studying and protecting mountain gorillas in Rwanda.

Sylvia Earle is a marine biologist, oceanographer, and explorer who has dedicated her life to studying and protecting marine ecosystems.

Vandana Shiva is an Indian environmental activist, physicist, and author who has been a vocal advocate for biodiversity conservation and sustainable agriculture.

Christiana Figueres is a Costa Rican diplomat and environmentalist who played a key role in negotiating the Paris Agreement on climate change.

Wangari Maathai, a Kenyan environmentalist and Nobel Peace Prize laureate, founded the Green Belt Movement and played a crucial role in promoting community-based conservation and sustainable development in Kenya.

Beverly Wright is an American environmental activist and advocate for environmental justice, focusing on the disproportionate impact of environmental hazards on marginalized communities.

Muhammad Yunus is a Bangladeshi social entrepreneur, banker, and economist who founded the Grameen Bank, a microfinance organization that provides loans to the poor, especially women.

Josephine Powell is an American environmental educator and founder of Project Learning Tree, a program that provides environmental education resources to K-12 teachers.

Wangari Maathai, a Kenyan environmentalist and Nobel Peace Prize laureate, founded the Green Belt Movement and played a crucial role in promoting community-based conservation and sustainable development in Kenya.

Majora Carter is an American environmental justice advocate and urban revitalization specialist who has worked to improve the environmental conditions in underserved communities.

Muhammad Yunus is a Bangladeshi social entrepreneur, banker, and economist who founded the Grameen Bank, a microfinance organization that provides loans to the poor, especially women.

Josephine Powell is an American environmental educator and founder of Project Learning Tree, a program that provides environmental education resources to K-12 teachers.