Search all winners by:
Iroro Tanshi
After rediscovering the endangered short-tailed roundleaf bat in Nigeria, Iroro Tanshi identified human-induced wildfires as the main threat to the species and launched a successful, community-led campaign to protect its refuge, the Afi Mountain Wildlife Sanctuary. Between early 2022 and May 2025, she and her community fire brigades prevented any serious wildfires from occurring in and around the sanctuary by patrolling thousands of farms and effectively responding to more than 70 fire outbreaks, safeguarding communities, forests, and the bat’s fragile habitat.
Semia Gharbi
Semia Gharbi helped spearhead a campaign that challenged a corrupt waste trafficking scheme between Italy and Tunisia, resulting in the return of 6,000 tons of illegally exported household waste back to Italy, its country of origin, in February 2022. More than 40 corrupt government officials and others involved in waste trafficking in both countries were arrested in the scandal. Her efforts spurred policy shifts within the EU, which has now tightened its procedures and regulations for waste shipments abroad.
Sinegugu Zukulu & Nonhle Mbuthuma
In September 2022, Indigenous activists Nonhle Mbuthuma and Sinegugu Zukulu stopped destructive seismic testing for oil and gas off South Africa’s Eastern Cape, in an area known as the Wild Coast. Organizing their community, Nonhle and Sinegugu secured their victory by asserting the rights of the local community to protect their marine environment. By halting oil and gas exploration in a particularly biodiverse area, they protected migratory whales, dolphins, and other wildlife from the harmful effects of seismic testing.
Chilekwa Mumba
Alarmed by the pollution produced by the Konkola Copper Mines operation in the Copperbelt Province of Zambia, Chilekwa Mumba organized a lawsuit to hold the mine’s parent company, Vedanta Resources, responsible. Chilekwa’s victory in the UK Supreme Court set a legal precedent—it was the first time an English court ruled that a British company could be held liable for the environmental damage caused by subsidiary-run operations in another country. This precedent has since been applied to hold Shell Global—one of the world’s 10 largest corporations by revenue—liable for its pollution in Nigeria.
Chima Williams
In the aftermath of disastrous oil spills in Nigeria, environmental lawyer Chima Williams worked with two communities to hold Royal Dutch Shell accountable for the resultant widespread environmental damage. On January 29, 2021, the Court of Appeal of the Hague ruled that not only was Royal Dutch Shell’s Nigerian subsidiary responsible for the oil spills, but, as parent company, Royal Dutch Shell also had an obligation to prevent the spills. This is the first time a Dutch transnational corporation has been held accountable for the violations of its subsidiary in another country, opening Shell to legal action from communities across Nigeria devastated by the company’s disregard for environmental safety.
Gloria Majiga-Kamoto
Concerned about the environmental harm caused by mounting plastic pollution in Malawi, Gloria Majiga-Kamoto fought the plastics industry and galvanized a grassroots movement in support of a national ban on thin plastics, a type of single-use plastic. As a result of her dedicated campaigning, in July 2019, Malawi’s High Court upheld the ban on the production, importation, distribution, and use of thin plastics. This is the first Prize for Malawi.
