Australian Steve Irwin was a world famous, high-spirited, lively host of The Crocodile Hunter television series. A conservationist, he was also part of other shows and documentaries on wildlife and environment. He was known for close encounters with some of the most dangerous and endangered animals in various jungles. He died after being pierced in the chest by a stingray barb while filming in Australia's Great Barrier Reef.
Swedish environmental activist Greta Thunberg is known for her straightforward speaking manner in which she addresses world leaders for failing to take sufficient action regarding the climate change issue. She is considered a youth icon for starting the movement Fridays for Future. She has been included in Time magazine's 100 most influential people list.
A child model at four and a television actor at eight, Shailene Woodley began working early and found fame with The Descendants, The Spectacular Now and the Divergent film series. She later gained tremendous appreciation for her work in the movie The Fault in Our Stars and HBO series Big Little Lies. The award winning actress is also an environmentalist and activist
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.
A well-known environmental attorney and an activist, Robert F. Kennedy Jr. has tirelessly worked for prosecuting governments and companies responsible for polluting environment and waterbodies like the Long Island Sound and Hudson River. Moreover, he has written books and articles on issues affecting the environment. Robert F. Kennedy Jr.’s work have won him prestigious awards and inspired numerous films and documentaries.
Margaret Atwood is a Canadian poet and novelist. Her works encompass themes, such as religion and myth, climate change, and gender and identity. An award-winning writer, many of Atwood's works have been made into films and television series; her work, The Handmaid's Tale, has had several adaptations. Perhaps, Margaret Atwood's most important contribution is her invention of the LongPen device.
An actor best known for playing Bruce Banner / Hulk in the Marvel Cinematic Universe superhero films, Mark Ruffalo has been active in Hollywood for over three decades. Even though he began acting in the late 1980s, he started getting noticed for his skills only in the 2000s. He has been nominated for numerous awards, including an Academy Award.
Singer, songwriter, musician, and activist Joan Baez has been active in the music world for over six decades. She emerged as a major musical figure in the counterculture era of the 1960s. Her music encompasses various genres like pop, folk-rock, country, and gospel music. She is involved in civil rights, human rights, and environmental activism as well.
Actor Woody Harrelson has been active in the entertainment world for over 40 years now. The son of a convicted hit-man, he had a difficult childhood and grew up in poverty. However, he was determined to build a good life for himself and earned a BFA in theater before venturing into acting. He is a vegan and an environmental activist.
Bianca Jagger is a Nicaraguan social rights advocate. She is credited with founding the Bianca Jagger Human Rights Foundation, where she is currently serving as the chairperson. For her work as a humanitarian, Jagger has received several awards, including the Champion of Justice Award. A former actress, Jagger appeared in many movies and TV shows throughout the 1970s and 1980s.
Emily Swallow is an American actress known for portraying prominent roles in popular TV series, such as The Mentalist and Supernatural. After starting her career in Broadway, Emily Swallow has managed to successfully establish herself in the American TV industry.
15 Mena Suvari
Timothy Treadwell is best remembered for his work on Alaskan bears. He founded the organization Grizzly People and lived among bears in the Katmai National Park for 13 years. In 2003, he and his girlfriend were killed and eaten by a brown bear. He inspired the documentary Grizzly Man.
18 Will Estes
Charles Robert Redford Jr. is a retired actor, activist, and director. He is credited with founding the Sundance Film Festival and was named in Time magazine's list of 100 most influential people in the world in 2014. For his contributions to arts, Charles Robert Redford Jr. was honored with the Presidential Medal of Freedom in 2016.
Lupita Nyong'o is one of the most popular black actresses of all time. The first Kenyan-Mexican actress to receive the prestigious Academy Award, Lupita Nyong'o has often been named in lists, such as the world's most beautiful woman. In 2020, she was named by Forbes magazine as one of Africa's 50 Most Powerful Women.
22 Laurie David
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.
Frederik, Crown Prince of Denmark is the first in order of succession to the Danish throne. Frederik has various interests that range from climate change to sports. He often encourages the people of Denmark to stay active and healthy. He has also established the Crown Prince Frederik's Foundation, which aims to provide financial support to students and encourage scientific expeditions.
24 Ally Walker
Lola Van Wagenen is an American historian who is credited with co-founding non-profit educational organizations like Consumer Action Now (CAN) and Clio Visualizing History, Inc. Consumer Action Now went on to establish several environmental education and consumer-oriented programs in an attempt to raise awareness about the effects of consumers' buying habits on the environment.
27 Lina Esco
28 Kate Bolduan
32 Baba Amte
35 Sylvia Earle
38 Bob Irwin
39 David Suzuki
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.