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Wanjira Mathai

March 10, 2022

A member of the Jury since 2019, Wanjira Mathai has over 20 years of experience advocating for social and environmental change on both local and international platforms. She is currently the vice president and regional director for Africa at the World Resources Institute (WRI), and previously served as co-chair of WRI’s Global Restoration Council and senior advisor to the Global Restoration Initiative. Mathai is the current chair of the Wangari Maathai Foundation and the former chair of the Green Belt Movement, which was founded by her late mother, Wangari Maathai (1991 Goldman Prize winner and 2004 Nobel Peace Prize Laureate) in 1977.

Over the years, Mathai has also served in important strategic and advocacy roles raising the prominence and visibility of global issues such as climate change, youth leadership, sustainable energy, and landscape restoration. She has held various roles with Women Entrepreneurs in Renewables and currently serves on the board of the World Agroforestry Center and as a Leadership Council member of the Clean Cooking Alliance. Mathai was named one of the 100 Most Influential African Women in 2018 and 2020.

Recent Posts

Two Days on the Mekong River in Thailand: A Report from the Field


November 18, 2025 – By Laura Fernandez

This fall, Goldman Environmental Prize Program Manager Laura Fernandez had the opportunity to visit Niwat Roykaew and Tuenjai Deetes, Goldman Prize winners from Thailand from 2022 and 1994, respectively. The following is a guest post about her experience. After spending three days in Chiang Mai, Thailand, attending the Asia Environmental Human Rights Defenders Forum, I…

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Prize Winners Today: Defending Vulnerable Ecosystems with Cath Wallace


October 21, 2025

For 73-year-old Cath Wallace, environmental activism is a lifelong pursuit. Her drive to protect the planet’s most fragile ecosystems is inherent to her identity. A former economics and public policy academic at Victoria University of Wellington, New Zealand, Cath turned to activism in the mid 1970s. Since then, she has dedicated her life to reducing environmental harm and educating others about what we owe the Earth.  Cath’s tireless advocacy for Antarctica, carried out in lockstep…

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Prize Winners Today: Protecting Costa Rica’s Shark Biodiversity with Randall Arauz


September 17, 2025 – By Paige Smith

Randall Arauz knows what it takes to move the needle on marine conservation: a combination of effective policy change, shifting public opinion, and persistence. Randall, a passionate and seasoned conservationist famous for fighting against shark finning, has been advocating for critically endangered sea turtles and sharks—and improving Costa Rica’s environmental laws—for over 30 years.   We…

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