Famous 20th Century Environmental Activists

Legal consultant, environmental activist, and consumer activist Erin Brockovich is known for suing California-based Pacific Gas & Electric Company, alleging them of contamination of water with hexavelent chromium, in 1993. Her story inspired the Julia Roberts-starrer 2000 movie Erin Brockovich. She has written two books and hosted TV shows, too.

The first wife of Charles, Prince of Wales, Princess Diana was a member of the British royal family. As a princess, she became known for her unconventional approach to charity work. She was celebrated as a style icon and fashionista as well. She divorced Charles in 1996 and died in a tragic car accident the following year.

Leonardo DiCaprio is a name every movie lover reveres. An Oscar, a BAFTA, and 3 Golden Globes does not do justice to DiCaprio’s immensely skilful performances and his top-notch portrayals of addicts, historical figures and business tycoons. From epic dramas and romances to crime and political thrillers, DiCaprio has constantly left a mark in each of his films.

Laurie David is an American environmental activist best known for producing An Inconvenient Truth, a documentary film that has been credited for reenergizing the environmental movement and raising public awareness on global warming. In 2003, she was honored with the Children's Nature Institute's Leaf Award for her efforts to educate young children about our environment.

As a budding model, Alexandra Paul decided to reject an offer from Stanford University to focus on a career in acting. She is best known to fans for her 5-year-long stint as Lt. Stephanie Holden in the internationally renowned series Baywatch. She is also a marathon runner and an avid swimmer.

Wangari Maathai was a Kenyan environmental, social, and political activist. She achieved popularity after becoming the first African woman to be honored with the prestigious Nobel Peace Prize. She is credited with founding a non-governmental organization called The Green Belt Movement (GBM), which focuses on women's rights and environmental conservation.

Renowned James Lovelock is best known for propagating the Gaia hypothesis, which states that every living being on planet Earth is part of a single self-regulating superorganism. He is also known for his long association with NIMR, London, and Harvard University and has over 50 patents under his name.

Canadian activist Severn Cullis-Suzuki is known for her fight for environmental issues and intergenerational justice. Born to environmentalist David Suzuki, she began her journey as an environmental activist in fifth grade. She was also honored in the UNEP’s Global 500 Roll of Honour and supports the Slow movement.

Canadian author and environmentalist Farley Mowat is best known for his books on his experiences as a naturalist. A zoology student at the University of Toronto, he dropped out without a degree. His bestselling novel People of the Deer related his concern about the plight of the Ihalmiut of the Arctic.

Indian polymath and environmentalist K. Shivaram Karanth, who enriched Kannada literature with his novels and plays, was named the "Rabindranath Tagore of Modern India" by Ramachandra Guha. He had quit college to join the Non-Cooperation Movement and later returned his Padma Bhushan to protest against the Emergency of the 1970s.

Indian environmental activist and physicist Vandana Shiva is known for her anti-GMO campaigns. The Gandhi of grain is the founder of RFSTN, which promotes sustainable agriculture, and is against globalization. She developed an interest in environmentalism after witnessing a forest at her hometown being cleared for a project.

Prominent environmentalist and world-class mountaineer, David Brower became aware of the environmental issues through his proximity to nature, eventually joining Sierra Club, serving it in different capacities over a long period before establishing several organizations of his own. Author of three autobiographies, he fought to keep dams out of the Grand Canyon and was thrice nominated for Nobel Peace Prize.  

David Fraser McTaggart was known for his wholehearted effort in making Greenpeace a truly global organization. The Canadian environmentalist was initially a promising athlete who excelled in badminton. After retiring from the chairmanship of Greenpeace, he ran an olive farm in Italy. He later died in a car crash.

Livia Giuggioli, the former wife of Academy Award-winning actor Colin Firth, made headlines when she split with Firth, over her alleged affair with Marco Brancaccia. Livia apparently tried covering up the affair by claiming Brancaccia was a stalker. She had first met Giuggioli while working as a production assistant.