Famous 20th Century Environmental Activists

This ranking is based on an algorithm that combines various factors, including the votes of our users and search trends on the internet.

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 1 Erin Brockovich

Erin Brockovich.
Famous As: Environmental Activist
Birthdate: June 22, 1960
Sun Sign: Cancer
Birthplace: Lawrence, Kansas

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.

 2 Princess Diana

Princess Diana.
Famous As: Member of the British Royal Family
Birthdate: July 1, 1961
Sun Sign: Cancer
Birthplace: Sandringham
Died: August 31, 1997

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.

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 3 Leonardo DiCaprio

Leonardo DiCaprio.
Famous As: Actor, Film Producer
Birthdate: November 11, 1974
Sun Sign: Scorpio
Birthplace: Hollywood, California, U.S.

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.

 4 Will Estes

Will Estes.
Famous As: Actor
Birthdate: October 21, 1978
Sun Sign: Libra
Birthplace: Los Angeles, California
Will Estes began his career as a child actor and appeared in quite a few commercials. His roles in Kirk and The New Lassie earned him Young Artist Award nominations. He later gained fame as Jameson "Jamie" Reagan in Blue Bloods and as JJ Pryor in American Dreams.

 5 Dennis Weaver

Dennis Weaver.
Famous As: Actor
Birthdate: June 4, 1924
Sun Sign: Gemini
Birthplace: Joplin, Missouri, United States
Died: February 24, 2006
Dennis Weaver is best known as Chester Goode/Proudfoot from Gunsmoke and as Deputy Marshal Sam McCloud from McCloud. He initially ran track and field, but his failure to qualify for the U.S. Olympic decathlon team made him join films. He had also been the president of the Screen Actors Guild.

 6 Laurie David

Laurie David.
Famous As: Environmental Activist
Birthdate: March 22, 1958
Sun Sign: Aries
Birthplace: Long Island, New York, United States

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.

 7 Ally Walker

Ally Walker.
Famous As: Actress
Birthdate: August 25, 1961
Sun Sign: Virgo
Birthplace: Tullahoma, Tennessee, US
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 8 Jack Hemingway

Jack Hemingway
Famous As: Autobiographer
Birthdate: October 10, 1923
Sun Sign: Libra
Birthplace: Toronto
Died: December 1, 2000

 9 Alexandra Paul

Alexandra Paul.
Famous As: Actress
Birthdate: July 29, 1963
Sun Sign: Leo
Birthplace: New York, New York

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.

 10 Maneka Gandhi

Maneka Gandhi.
Famous As: Politician, Animal Rights Activist
Birthdate: August 26, 1956
Sun Sign: Virgo
Birthplace: New Delhi, India

 11 William O. Douglas

William O. Douglas.
Famous As: Former Associate Justice of the US Supreme Court
Birthdate: October 16, 1898
Sun Sign: Libra
Birthplace: Minnesota, United States
Died: January 19, 1980

 12 David Suzuki

David Suzuki.
Famous As: Academic, Enviromental Activist
Birthdate: March 24, 1936
Sun Sign: Aries
Birthplace: Vancouver
Best known for the CBC show The Nature of Things, Canadian environmental activist David Suzuki has also been a genetics and zoology professor. The UN Environment Programme Medal winner has been a major force against global warming and has written several books, such as An Introduction to Genetic Analysis.

 13 Wangari Maathai

Wangari Maathai.
Famous As: Nobel Peace Prize Winner
Birthdate: April 1, 1940
Sun Sign: Aries
Birthplace: Ihithe village, Tetu division, Nyeri District, Kenya
Died: September 25, 2011

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.

 14 Bob Irwin

Bob Irwin
Famous As: Naturalist
Birthdate: June 8, 1939
Sun Sign: Gemini
Birthplace: Melbourne

 15 David Mayer de Rothschild

David Mayer de Rothschild
Birthdate: August 25, 1978
Sun Sign: Virgo
Birthplace: London

 16 Douglas Tompkins

Douglas Tompkins
Famous As: entrepreneur, environmentalist
Birthdate: March 20, 1943
Sun Sign: Pisces
Birthplace: Ohio
Died: December 8, 2015

 17 Patrick Hemingway

Patrick Hemingway
Birthdate: June 28, 1928
Sun Sign: Cancer
Birthplace: Kansas City

 18 Baba Amte

Baba Amte.
Birthdate: December 26, 1914
Sun Sign: Capricorn
Birthplace: Wardha, Maharashtra
Died: February 9, 2008

 19 George Monbiot

George Monbiot
Famous As: Journalist, University teacher, Activist, Writer
Birthdate: January 27, 1963
Sun Sign: Aquarius
Birthplace: Kensington

 20 James Lovelock

James Lovelock
Famous As: Biologist, Chemist, University teacher, Mythographer
Birthdate: July 26, 1919
Sun Sign: Leo
Birthplace: Letchworth

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.

 21 Ben Goldsmith

Ben Goldsmith
Famous As: Environmentalist
Birthdate: October 28, 1980
Sun Sign: Scorpio
Birthplace: London

 22 Gifford Pinchot

Gifford Pinchot
Famous As: Forestry scientist
Birthdate: August 11, 1865
Sun Sign: Leo
Birthplace: Simsbury, Connecticut, United States
Died: October 4, 1946

 23 Jimmy McNichol

Jimmy McNichol
Famous As: Actor, Singer
Birthdate: July 2, 1961
Sun Sign: Cancer
Birthplace: Los Angeles

 24 Sheherazade Goldsmith

Sheherazade Goldsmith.
Famous As: Environmentalist, Socialite
Birthdate: March 14, 1974
Sun Sign: Pisces
Birthplace: Denmark Hill, London

 25 Gary Snyder

Gary Snyder.
Famous As: American man of letters
Birthdate: May 8, 1930
Sun Sign: Taurus
Birthplace: San Francisco

 26 Severn Cullis-Suzuki

Severn Cullis-Suzuki
Famous As: Television presenter, Writer
Birthdate: November 30, 1979
Sun Sign: Sagittarius
Birthplace: Vancouver

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.

 27 Laurance Rockefeller

Laurance Rockefeller.
Famous As: Venture Capitalist & Environmentalist
Birthdate: May 26, 1910
Sun Sign: Gemini
Birthplace: New York City
Died: July 11, 2004

 28 Medha Patkar

Medha Patkar.
Famous As: Social Activist
Birthdate: December 1, 1954
Sun Sign: Sagittarius
Birthplace: Mumbai

 29 Farley Mowat

Farley Mowat
Famous As: Writer
Birthdate: May 12, 1921
Sun Sign: Taurus
Birthplace: Belleville, Canada
Died: May 6, 2014

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.

 30 Jean-Michel Cousteau

Jean-Michel Cousteau
Famous As: Explorer
Birthdate: May 6, 1938
Sun Sign: Taurus
Birthplace: Toulon

 31 Sunderlal Bahuguna

Sunderlal Bahuguna
Famous As: Environmentalist, Political activist
Birthdate: January 9, 1927
Sun Sign: Capricorn
Birthplace: Tehri

 32 Swampy

Famous As: envirimentalist
Birthdate: 1973 AD

 33 Chico Mendes

Chico Mendes
Famous As: Brazilian environmentalist
Birthdate: December 15, 1944
Sun Sign: Sagittarius
Birthplace: Xapuri, Brazil
Died: December 22, 1988

 34 K. Shivaram Karanth

K. Shivaram Karanth
Famous As: Author, Poet
Birthdate: October 10, 1902
Sun Sign: Libra
Birthplace: Udupi district
Died: December 9, 1997

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.

 35 Vandana Shiva

Vandana Shiva
Famous As: Philosopher, Physicist, Writer, University teacher
Birthdate: November 5, 1952
Sun Sign: Scorpio
Birthplace: Dehradun

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.

 36 Yann Arthus-Bertrand

Yann Arthus-Bertrand
Famous As: Painter, Photographer, Film director, Journalist, Screenwriter
Birthdate: March 13, 1946
Sun Sign: Pisces
Birthplace: Paris

 37 Linda Hogan

Linda Hogan
Famous As: Poet
Birthdate: July 16, 1947
Sun Sign: Cancer
Birthplace: Denver, Colorado, United States

 38 Amory Lovins

Amory Lovins
Famous As: Physicist, Writer
Birthdate: November 13, 1947
Sun Sign: Scorpio
Birthplace: Washington, D.C.

 39 David Brower

David Brower
Famous As: Cinematographer, Ski mountaineer
Birthdate: July 1, 1912
Sun Sign: Cancer
Birthplace: Berkeley
Died: November 5, 2000

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.  

 40 Chandi Prasad Bhatt

Chandi Prasad Bhatt
Famous As: Social worker
Birthdate: June 23, 1934
Sun Sign: Cancer
Birthplace: Chamoli Gopeshwar

 41 Elspeth Huxley

Elspeth Huxley
Famous As: Writer
Birthdate: July 23, 1907
Sun Sign: Leo
Birthplace: London, England
Died: January 10, 1997

 42 Pradip Krishen

Pradip Krishen
Famous As: film director, writer
Birthdate: 1949 AD
Birthplace: New Delhi

 43 René Dubos

René Dubos
Famous As: Microbiologist
Birthdate: February 20, 1901
Sun Sign: Pisces
Birthplace: Saint-Brice-sous-Forêt, France
Died: February 20, 1982

 44 David Fraser McTaggart

David Fraser McTaggart
Famous As: Environmentalist
Birthdate: June 24, 1932
Sun Sign: Cancer
Birthplace: Vancouver, Canada
Died: March 23, 2001

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.

 45 Thomas R. Odhiambo

Thomas R. Odhiambo
Famous As: Entomologist
Birthdate: February 4, 1931
Sun Sign: Aquarius
Birthplace: Nyanza Province, Kenya
Died: May 26, 2003

 46 Livia Giuggioli

Livia Giuggioli.
Famous As: Film Producer
Birthdate: September 4, 1969
Sun Sign: Virgo
Birthplace: Rome

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.

 47 Julian Ozanne

Julian Ozanne.
Famous As: Film Producer
Birthdate: November 30, 1965
Sun Sign: Sagittarius