Sustainable Population Pledge

Recognizing that the world is in a crisis of 7+ billion people stripping the earth of vital resources, exacerbating dire poverty, misery and early deaths, and pushing many species to extinction:

Check one of the above.*

Further, I pledge to educate my family and friends that the most important single thing we can do to help create a truly sustainable world is to voluntarily choose to have no more than one child.

One child families can save humanity

Note: you can also print our Sustainable Population Pledge, sign, and mail to World Population Balance.

One child families means less than half our current population in 100 years

Source:  Eric Rimmer and Andrew Ferguson

Why a TWO child average will not solve overpopulation

  • With a two child average per woman (or per man), total population would go up by about two billion more before it even levels off! We must begin dramatically reducing births now – in order to achieve sustainable population and a viable planet for all people.

One child families can humanely solve overpopulation!

  • By averaging one child, total world population would be about 1/3 of our current population in 100 years. Exponential population decline can help humanity return to a truly sustainable number of people on the planet.

One child families can save the world.

Overpopulation is destroying the planet and our future

  • Our world is in a human well-being crisis. Every year 75 million more acres of farmland are destroyed and lost to farming, net loss (UN). Over half the world's 7 billion people are in countries where fresh water tables are falling.
  • We are destroying / losing 25 more acres of forest every minute, net loss (FAO). We are killing off 150 to 200 species every 24 hours (UNEP). Extinction rates are hundreds of times higher than normal.
  • Overconsumption of many "renewable" resources is rendering them nonrenewable. Alarmingly, we are consuming many non-renewable resources – fossil fuels, metals and minerals – at ever-increasing rates, as well.
  • We are struggling to live healthy lives on a dying planet. And many people are deluding themselves into believing that we can grow our way out of these problems.
  • According to research by the Global Footprint Network, we humans are currently consuming renewable resources over 70% faster than the truly sustainable rate. We are in consumption overshoot. 
  • To stop global overconsumption, depletion of resources and unprecedented loss of species – and significantly reduce dire human poverty – total world population needs to be between one and three billion people. That is the population range to be truly sustainable, long term, on the planet.
  • Therefore, the most important single action each of us can do to help create a truly sustainable planet and population is to choose to have one child and encourage others to have one child. (See the five minute film, "One Planet, One Child".)

We can solve overpopulation humanely.

Sign our Sustainable Population Pledge!

(To find out how else you can help, see Our Vision to Solve Overpopulation.)

Signers - Sustainable Population Pledge

Alan R. Anderson - U.S.
Dave Paxson - U.S.
Alan Ware - U.S.

Karen Shragg - U.S. -  "I am a composting, organic vegan who teaches environmental education and speaks up on the overpopulation issue. But nothing I have done has been more fruitful than my choice not to multiply."

Carlota Mendoza Perez - U.S.
Toni Brandvold - U.S.
Virginia Ward - U.S.
Myra Starkenburg - U.S.
John Bohlig - U.S.
Donald Pine - U.S.

Thomas Breckenridge - U.S. -  "We must all be asking the question, 'Is it Sustainable?' when we look at our overpopulation situation. Then ask, 'What am I doing about it?' Thanks to World Population Balance for its continued witness and direction."

Nancy Paxson - U.S.
Joan Phillips - U.S.
Lawrence Turner - U.S.
Kendall Griffith - U.S.
Joan Wicklund - U.S.
Ruth Colby - U.S.
Helen R. Anderson - U.S.
Michael Hanauer - U.S.
Bettye Ware - U.S.
Clifton Ware - U.S.
Virginia Humphrey - U.S.
Ralph C. Colby - U.S.
Fred Elbel - U.S.
Raymond F. Smith - Australia
Jane Howard - U.S.
Patricia Baker - U.S.

Craig Blacklock - U.S. -  "Yes, I'm very happy to pledge to stop at our single child. We decided long before she was born, that we would only have one. This is the most loving gift we can give our daughter. If everyone would do this, she and the others of her generation would face a promising future, rather than one of certain declines in all measures of life."

Bruce Phillips - United Kingdom
Carolyn VandenDolder - U.S.
Barbara Franklin - U.S.
S. Scott Nicholas - U.S.
Marshall Carlson - U.S.
Harold Huggins - U.S.
Paula Barkmeier - U.S.
Grace Dyrud - U.S.
Nora Anderson - U.S.
Frosty Wooldridge - U.S.

Liz Todd - U.S. -  "Thank you for all you do in raising awareness to the overpopulation issue."

Edward Anderson - U.S.
Alexander Cutchey - U.S.
Katie Butcher - U.S.
Lorelei Swan - U.S.
Vernon Palm - U.S.
Dolly Coburn - U.S.
LaVonne Anderson - U.S.
Judith Kroening - U.S.
Gabe Ely - U.S.

Mark M. Giese - U.S. -  "Overpopulation is the world's biggest problem".

Colleen Ware - U.S.
Dave Gardner - U.S.

Veronica Egan - U.S. -  "This is humanity's number one issue. Nothing else will improve until we 'get it'".

John Massman - U.S.

Morgan Armitage - U.S. -  "No kids for me!"

Claire Henry - United Kingdom
Bob Petruzzi - U.S.
Priscilla Rich - U.S.
Danielle Montague-Judd - U.S.
Edmund Levering - U.S.
Bill Weir - U.S.
Richard Grossman - U.S.

Morgana Faeroe - U.S. -  "I thought this was a problem when I was a teenager 45 years ago so I chose to have my tubes tied then. People keep saying they are trying to make our world a better place for their grandchildren. Why can't they see if they don't look after it for themselves there will be no grandchildren?"

Renee Wallace - U.S.
Alex Borrell - Mexico
Charles Gessert - U.S.
David Yount - U.S.

Karion Minussi - Brazil -  "All problems start and end here: overpopulation!"

Mrinmoy Das - India -  "We should exercise this campaign to achieve a sustainable world."

Eric Koch - U.S. -  "We exist in an artificial prosperity created by mining the means to future prosperity."

Joseph Mitchener - U.S. -  "Years back, Stanford researchers estimated that the Earth could sustain over the long term only one to two billion humans at the then current European standard of living. We are more than three times over that limit now." 

Brett Cherrington - U.S. -  "While rarely mentioned, waiting as long as you are willing to have your one child (if you choose to have one), is also very important to maximize the benefit of limiting your reproduction. Wait as long as you can, but even waiting one more year makes a difference."

Jennifer Codiga - U.S.
Freya Gil - Columbia

Marcus Prometheus - Italy -  "I renounced having children in 1977 by having a vasectomy as I could not assure them a future in a world with population growing by billions."

Maria Requena - Chile
Carolina Mesa - Columbia

Danja Karenko - Finland -  "If I wanted a child, I would adopt. Just like I would never get a puppy from a breeder when the shelters are full of rescues."

Kitty Quen - U.S.
Ivvin Moran - Mexico

Alys Kennedy - U.S.  - "Given the world situation I believe it is imperative
that all humans elect to limit the birth of new children.  We already have millions who have been orphaned or live in abject poverty.  Let us use our maternal/paternal instincts to care for them and limit the birth of new children - everywhere."

Ada Alvarado - Guatemala

Abigail Roberts - U.S. - "The world cannot sustain the people it has now. Everyone has to start acting responsibly."

Mario Buenfil - Mexico  -  "Congratulations to all people signing this pledge. You are brave and conscious dwellers on this overcrowded world, luckily with our example and compromise we may change things in a non-violent way. The alternative, the "Laissez-faire" option, will surely lead to violence and suffering for billions of people."

Charles Hood, Jr. - U.S.
John Lambert - United Kingdom

Stacy Portner - U.S.  -   "I'm happy with my fur baby child, being an auntie to my nieces, and passing my legacy on through volunteer work to making the world a better place."

Alex Beane - U.S.
Dallas Rising - U.S.
Ferran Mir Culell - Spain
K. Schreiber - U.S.
Jose Salmeron - Brazil
Danish Parmar - Pakistan
Robin Pinegar - U.S.
Robert A. Jeffrey - United Kingdom
Peter Van Sant - U.S.

Vanessa Mattisto - Australia -  "We can do it!"

Kristin Lein -U.S.
Harriet Mitteldorf - U.S.
Cindy Kates - U.S.
Laura Carroll - U.S.
Vik Dylan - U.S.

Abdul Malik Ghauri - Pakistan -  "The only way to ensure sustainable peace is population planning."

W. Rhodes - U.S. - "Thank you for taking this head on before there is world-wide calamity, suffering, and death."

Kade Frazier - U.S.
Marcel Izeboud - Netherlands
Virginia Katz - U.S.
Andrew Mancuso - U.S.
Jonathan Waldman - U.S.
Catie Massey - U.S. 
Jon Swenson Tellekson - U.S.

Steven B. Kurtz - U.S. - "Overpopulation has been my #1 issue for over 25 years."

Daniel Stein - U.S.
Gabriel Teodor - Romania

Elizabeth Biswell - U.S. -  "The Earth cannot withstand all of us anymore. I pledge to help create a world sustainable for generations to come."

Lauda Gomez - U.S. - "May we succeed to help mother Earth and humanity together."

Monica Howanyk - U.S. 

Charlotte Davies - United Kingdom - "I have one 12 year old son, and it is wonderful.  I don't need to have any more children to have a solid, happy family."

Kylie Marchiori - U.S.  

Edith D'Angelo - U.S. - "We should think of future generations.  Anything we do now will affect the future."

Koda Windslow - U.S. 

Claudio Pestarino - Italy - "One child families can save humanity and other animal species and the global environment!" 

Jasmine Stark - U.S. 
Viktoria Lencses - New Zealand 
Jonathan Escobar - Argentina
Mario Guzman - Costa Rica
Sandra Bergland - U.S.

Michelle Greiwe - U.S. - "Parents would have much more attention to give when not divided between other siblings."

Ann Faris - U.S.
Joh Murray - Australia
Ashley Romero - U.S. 

Greg Mansfield - U.S. 

Mary Monzyk - U.S. - "Overpopulation is the cause of the frightening environmental problems we now face."

Carey Hellmers - U.S.
Dalton Neu - U.S.
Parker Hinton - U.S.
Caryn Hammond - U.S.
Silsa Gatewood - U.S.
Bryce Olson - U.S.
Dishant Shah - India
Sarah Pate - U.S.
Uriah Phillips - U.S.
Brian Toren - U.S.

Kathyrn Jean Morris - Indonesia - "We are addicted to population growth. We must change our thinking about what sustainable living really means."

Donald Offerman - U.S.
Daniel White - U.S.
Sandra Derr - U.S.
Lewis Bassett-Butt - United Kingdom
Gen Agustsson - U.S.
Kamahanalani Beck - U.S.
Trisha Rapier - U.S.

Cindy Burke - U.S. - "My husband and I are childless by choice, due to  understanding from a young age that overpopulation is the most critical problem facing humans as well as all other living entities on Earth.  We thank you for the work you are doing and hope to see a groundswell of support that reopens, on a world stage, this most necessary conversation."

Anny Martinez - U.S.

Andrea Ochmann - U.S. - "We have a responsibility to Earth and all its inhabitants to monitor our own population."

Jessica Padmanabhan - U.S.
Mitchell Garvey - Australia
Patricia Johnson - U.S.

Carolyn Sayers - U.S. - "We must wake up to this issue now!"

John England - United Kingdom
Taylor McClendon - U.S.

Cathleen Gempeler - U.S. - "I feel quite honored in my life that I did NOT have any children. So I see it from a liberating perspective now instead of feeling that it did not serve my womanhood. Thank you for all you do!"

Jake Owsley - U.S.
Barbara Nyegaard - U.S.
Nicholas St.-Onge - Canada
Tamara Sullivan - U.S.
Tammy Mccormack - U.S.
Fred Palmer - U.S.

Bedprakas Syamroy - India - "The world needs to be saved from destruction through load of human numbers"

Kristina Bryant - U.S.

Susan Peacock - U.S. - "Even as a child, it worried me that our failure to control population growth could ultimately destroy us as a species. Out of this concern for a quality of life, it seemed a moral imperative to my husband and I not to have children. We have tried to share this concern throughout our lives but it's so often seemed an isolated position. I have always been mystified at how it seemed no one else was worrying about it so thank you for the work you do!"

Molly Zupon - U.S. - "I want a world where people and animals can live well. I do sincerely believe we have an overpopulation problem and hereby swear to never have any children."

Sean Carlson - U.S.
Kristin Sells - U.S.
Eric Koch - U.S.
Dan From - Denmark
Don Kelly - U.S.
Sean McNichol - United Kingdom
Jill Jensen - U.S.
Tanja Olsen - Denmark
Krista Stone - U.S.

Claire Graham - United Kingdom - "Our planet is overpopulated and struggling with the amount of people on it. We do not need more!"

Krystal Jarvis - U.S.
Lydia Beke - Australia
Bethany Alexander - U.S.
Tiffany Morris - Australia
Aaron McConnell - Northern Ireland
Caitlin Burkhart - U.S.
Lindsey Luttrell - U.S.
Brenda Nelson - U.S.
Paige Ohmen - U.S.
Misty Johnson - U.S.
Carolyn Muse - U.S.
Linda Raimondi - Italy
Nikki Bennett - Australia
Brooke Anderson - U.S.

Deidra Tuxen - U.S. - "I have never given birth and my tubes are tied."

Holly Star - U.S.
Kaitlin Klassen - Canada
Laura Kolb - U.S.
Rachel Kayen - U.S.
Sarah Olivo - U.S.
Joseph Robson - United Kingdom
Gina De Naples - U.S.
Kayla Oliver - New Zealand
Adam Sneath - U.S.
Charlie Troy - U.S.
Dorian Lusco - U.S.

Lydia Cardona - U.S. - "When all the world's orphans are finally adopted only then should people have biological children."

Diana Harper - U.S.
April Cottrell - U.S.
Steve Williams - U.S.
Karl Burney - U.S.
Ruth Anthony-Gardner - U.S.
Megan Myers - U.S.
Johnn Escobar - Argentina
Alysia Adams - Australia
Peyton Ide - U.S.
Elley Smith - U.S.

Dayna Germani - Canada - "I pledge to do my part by someday soon getting fixed so I don't contribute to the overpopulation issue."

Ryan Prickler - U.S.

Abra Eden Larr - U.S. - "Issues like climate change and deforestation are directly linked to overpopulation. As an environmentalist I support this initiative to educate others about creating a truly sustainable Earth through a national Overpopulation Awareness campaign. I am but one though I hope one day to be one of MANY others like me who seek a brighter, more sustainable future."

Leanne Hayashi - Canada

Viswanathan Vaidyalingam - India"It is high time human beings understood that it should be populaSHUN. Clearly, we are sitting on a time bomb. And I am on a mission to create awareness among Indians now."

Leandro Coelho - Brazil
Dev Corbitt - U.S.
Satchel Joseph - U.S.
Panagiotis Nikoletopoulos -Greece

Edward Benckert - U.S."People need to see the benefits are not just sustainability but a radical rise in the quality of life for all the planet's inhabitants."

Mindy Weidner - U.S.
Ben Molesky - Canada
Molly Geissman - U.S.
Thomas McCloskey - U.S.
Navin Parti - India
Tess Roesch- U.S.

Richard Vernon - United Kingdom "My primary aspiration is to see a world where the one species whose ecological footprint on this Earth is heavier than those of all other species, comes to recognize this fact and make the changes necessary, including a significant reduction in our numbers."

Gisela Olsson - Sweden
Toni Kemp - U.S.
Garnetta Dittrich - U.S.

David Rust - U.S. "If we do not set aside our differences and solve our overpopulation problem we are doomed on planet Earth. Mankind will go the way of the dinosaur."

Riley Lewis - U.S.
Arun Isaac - India
Robert Schmitz - U.S.

Trevor Higgs - Canada "We need to wake up the rest of the world to this "bomb" so that humanity might have some type of decent future."

Poshan Li - Australia "Challenging overpopulation goes beyond caring for the planet as a human resource. It recognizes limits to our place within an ecosystem that can and should support a host of living beings."

Adam Medina - U.S.
Venk Shenoi - U.K.

Judith Suess - U.S. "I love the billfold size cards and as I distribute them the responses are very positive."

Stephen McKevitt- U.S.
Robert Sanger - U.S.

Wilbur Ince - U.S. "I care about all of us and want to raise awareness about overpopulation!"

Michelle Lyons - U.S. "I saw the issues in the country and our world and made the decision that I wasn't going to bring kids into this world. I've so wished that more felt this way."

Marika Rautiainen - Finland "Before you insist on your rights to another child to satisfy your own needs - Think! Think of the needs of the people who remain after you're gone."

Lora Smith - United Kingdom

Justice Stallman - Australia "I think this is a fantastic idea to solve overpopulation and many of our planet's environmental issues. I support this one hundred percent."

Heather Hegi - U.S.
William Little - U.S.

Deb Thompson - U.S. "Too much of anything is not good for us, and that includes children."

Debbie Lowenson - U.S.
Luke Fletcher - U.S.
Jay Hunter - U.S.

Renae Wilson - U.S. "Overpopulation is a really big problem and can be solved with a little bit of effort."

Genevra Griggs - U.K.
David Kidd - U.S.
Artis Driksna - U.K.
Johnn Escobar - Argentina
Saaketh Jasti - U.S.
Tim Robinson - U.S.
Tom Hartman - U.S.
Andre Day - Australia

Anthony Ries - Canada "Overpopulation is a serious problem and the root of almost every serious problem in this world."

Barry Goldman - Australia " Overpopulation of humans is the planet's single most significant issue - other matters, like global warming and depleted water supplies, are merely symptoms - attempts to control them are simply bandaid solutions."

John Morris - U.S.
Michael Reese - Australia

Garrett Deletti - U.S. " Why is this not a bigger issue in politics and media, and why isn't everyone talking about this every day?"

Jeremy Johnson - U.S.
Devin Talley - U.S.

Allison Mcgee - U.S. " I love what you propose! It would give hope to our Earth, our future."

Rajan Choudhary - India
Martin Hempel - Germany
Christina Henson - U.S.
Vicki Beyerlein - U.S.
Aaron Burrows - Australia
Amber Clark - U.S.

Dennison Dolato - U.S. " Population must be reduced and I believe reason will win the day as the facts get out and enlightenment continues."

Lucas Oldham - U.K.
Max Coates - Spain
Lynn Foley - U.S.
Eric Rimmer - U.K.
Katarina Lang - U.S.
Jana Eliasson - Germany
Robert Krips - U.S.

Christina Corser - U.K. " Human overpopulation is the single greatest threat to our amazing planet."

Benny Keuning - Netherlands
Susana Sanchez - Mexico
Helen Sylvan - Sweden
Gabriele Negro - United Kingdom
Bissera Ivanova - Bulgaria
Darby Bascome - U.S.
Robin Iverson - U.S.
Jessica Lensbower - U.S.

Byrna Gallagher - U.S. " It is good for my heart to see the many names of others who also care deeply and passionately and fearlessly about Earth--who care enough, in fact to do the single most personally and ecologically impactful thing of all in its name."

Symone Saul - U.S.
Chris Tilley - South Africa

Mark Strauss - U.S. "I would love to spread the knowledge of this issue - overpopulation of the human species - which is the biggest problem facing the human race."

Holly Wojton - U.S.
Brent Will - Canada

Robert Schmitz - U.S. "Most of our sustainability concerns are directly related to overpopulation."

Sean Pefley - U.S.

Timothy Henderson - U.S. " I can't fathom how the people of this wonderful planet refuse to accept that a lot of the ecological and economic problems we endure can be greatly attributed to the population of our species."

Julia Ludwick - U.S.
Paige Summers - U.S.
Carl Prakaashana - U.S.
James Gayhart - U.S.
Richard Monroe - U.S.

Holly Turner - U.S. " I agreed to sterilization after having only one child. The choice for me to not bring greater suffering was one of compassionate sacrifice."

Deez Nurtz - U.S.
Jim Bastian - U.S.
Elaine Winter - U.S.
Ann Schley - U.S.
Mark Blondeau - Canada

Maryann Balish - U.S. " We all need to work together to stop the world's largest problem - OVERPOPULATION."

Gene Cook - U.S. " I'm 72 years old and have seen the world population increase by a factor of 3 in my lifetime. Our planet cannot long sustain that number of human beings."

Ana Knezevich - U.S.
Karen Flower - United Kingdom

Sju Georgine Thorup - Denmark " We must help each other get this important message out for the sake of a healthy and happy humanity."

Ana Knezevich - U.S.
Nigel Theobald - United Kingdom
Andrea Rogers - U.S.
Kaden Griffith - Germany
Ted Duepner - U.S.
David Trauger - U.S.

Jayram Govindarajan - India "Water and air are fundamental to healthy living. Overpopulation will make it very difficult to administer resources, safety, and education for the masses of people."

Kirsten Stade - U.S. "Unsustainable human population growth underlies every existential threat looming against our planet and human civilization, from climate change to the biodiversity crisis to spreading desertification, water shortages, the refugee crisis and Islamic extremism. As an environmental and peace activist, it would be hypocritical for me to have a child."

Kristie Metzger - U.S. Sara Dastoum - France

Jason Gordon - U.S. "The rate of poverty, social equity depletion, environmental degradation, and a decrease in resources all rise as a function of increases in population size."

Diane McMahon - U.S.
James Deacon - United Kingdom
Victoria Raines - U.S.
Bryan Godfrey - U.K.
Adam Ballou - U.S.

Ronald Clark - U.S. "Too many people use the word 'diversity' only in reference to different races, ethnicities, and cultures, but what of nonhuman species that are facing a wave of extinction?"

Wendy Dugmore - Australia
Helen Sylvan - Sweden

Mary Cavanaugh - Canada "Overpopulation of the world is the single reason I chose not to have children 35 years ago!"

Paula Dugmore - Australia
Reinhold Probst - U.S.
Oscar Roman - U.S.

Carol Mckinlay - United Kingdom "We must do more to promote having one child in a positive way and to speak out. The more we speak about it the more acceptable it will become and this will lead to increased awareness of the problem."

Stewart Negus - Australia "In my lifetime I have witnessed Australia's population double."

Rebecca Fraenkel - U.S.
Warren High - U.S.
Randi Fitch - U.S.
Otto Schuetz - U.S.
Kirby Elmore - U.S.
Stephen Odlum - Australia
Claudia Emmons - U.S.
Eugene Mioletti - U.S.

Valerie Stevens - United Kingdom "Since 1970 I have worked in organizations that campaigned on the environment and in those speaking out about overpopulation. I became Chair of Population Matters (UK), formerly Optimum Population Trust, from 2005 to 2009. But it is still a massive struggle to convince people - especially Greens!"

Linda Killander- Sweden "Let us do this together! We have the power to change the world!"

Alvin Tang - Malaysia
Vanessa Moo - Malaysia
Matthew Scott - Australia
Robert Kaufman - U.S.
Craig Cristenson - U.S.
Sarah McIntyre - U.S.

Brandy Pelosi - U.S. "My husband and I pledge to not have children and continue to spread overpopulation awareness."

Dallas Jarvis - U.S.

Buzz Marcus - U.S. "Overpopulation and unmitigated consumption are driving life on our tiny planet to the brink of extinction."

Stojan Germani - Italy "Wars should never be a system to reduce the population. The growth should be controlled by a logical thought and not by blood and crying!"

Barbara Ward - Australia "This problem is urgent and needs a global solution. A humane solution is better than the age-old one that involves disease, violence, wars, famine or migration (which just moves the problem onto someone else's territory)."

Joseph Mitchener - U.S.

Jean Richards - U.S. "Childfree adults are heroes. They conserve more resources than any recycling ever will."

Corey Mueske - U.S. "Our future disasters will come from us having blinders on to the dangers of overpopulation unless we can counteract the negative and reduce our birth-rates to be below our death-rates humanely."

William Blake - United Kingdom
Britta Krause - U.S.
Susan Mcdonald - U.S.
Jackson Buraczewski - U.S.
Bassim Mahmoud - Lebanon
Susan Fairweather - United Kingdom
Rebecca Hessel - Sweden
Trisha France - U.S.

Jenny Kirchner - Fiji"The world depends on less people for survival."

Hans De Groot - Netherlands
Damian Tapia - U.S.

Julie Joynt - U.S."When I was very young, first year in high-school in Ireland, I decided not to have children, noticing that there seemed to be too many people already in the world and so many of them starved for nourishment and love."

Maria Victoria Casares - Argentina
Kendrick Cisneros - U.S.
Albert Rich - U.S.
Angelo Gross - Germany

Iwona Smyk - United Kingdom"We all need to start acting responsibly. I am trying to do all I can to make a difference by planning my future in conservation, by being vegan and yes, by not contributing to the world overpopulation problem."

Erica Kolhoff - U.S.
Aleea Evangelista - U.S.
Alizae Rodriguez - U.S.
Alex Lopez - U.S.

Phillip Munson - U.S."This is the most urgent problem we face. This should not be a taboo topic."

Martin Glenton - England
Neil Sauter - U.S.
Chris Bystroff - U.S.

Jan Mulder - Netherlands - "I truly hope that we all can succeed in stopping overpopulation.We must!"

Deb Thompson - U.S. - "I believe that our beautiful environment and the other species who inhabit it with us, will be irreparably destroyed if we continue to selfishly and mindlessly reproduce."

Kayla Zirpel-Proctor - U.S. - "There are so many children in the world that need good adopted homes that in my opinion it is unethical to add another human to this planet without taking care of the ones existing on this planet already."

Praveen Krish - India
Richard McManus - U.S.
Michael Lee - U.S.
Ivan Cicin- Sain - United Kingdom

Sabrina Reiniger - Germany - "The earth needs room to breathe and other species deserve to thrive as much as we do. I want to give life that chance by remaining childfree as I happily take care of my cats, my partner, family, friends and community and try to live as sustainably as possible."

Robert Hanna - U.S.
Richard Elrick - U.S.
Jackson Clarke - Australia

Scott Davie - Canada - "Contraception, including voluntary sterilization, needs to be made more available."

Alan Bankes - Canada
Whitney Rawls - U.S.
Tricia Burke - U.S.

Jennifer Cutting - U.S. - " I had myself voluntarily sterilized before having any children. It's the only responsible thing to do!"

Louise Solari - Spain
Leslie Folwell - United Kingdom
Allan White - U.S.
Everett Anderson - U.S.
Harry Haines - United Kingdom
John Schultz - U.S.

Kate Shepherd - Canada - " I agree that all global citizens need to understand population ramifications and galvanize our efforts to conserve, innovate, and practice restraint in our choices; not in order to live a stringent, lean existence, but rather to enjoy a balanced, joyful and productive life in partnership with all life on our planet."

Herbert Drower - U.S.
Katie Dod - Australia

April Mckenzie - Canada - "Choosing not to bear a child does not mean you don't get to have a family. It means you are giving a better quality of life and a greater chance of future wellbeing to all those children surrounding you that you have accepted as family."

Ward Moroz - Canada

Crystal Peters - Canada - " I want to see future generations have a good life with plenty of space, nature, fresh air and water; a good future. I want wild animals to have habitat for their own families, to share the world generously with them. World Population Balance gives hope for the planet and for future generations. There is a solution."

Samantha Rixon - Australia
Anthony Day - Australia
Peter Ip - U.S.
Nicole Binder - U.S.
Brett Cherrington - U.S.
Katy Williams - South Africa

Jean Lee - U.S. - "This is the MOST important issue of our time. Hopefully the message can be spread and people can get on board with it. We can make the right choice NOW, or it will be made for us by nature."

Sheila Dashnaw - U.S.
Julie Frey - Denmark
Michele Carmichael - Australia
Teddy Khteian-Keeton - U.S.
Steve Mohler - U.S.
Judy Mohler - U.S.
Ariel Schwab - U.S.
Lisa Cederlilja - Sweden
Vidar Gunstevdt - Norway

David Fontaine - U.S. - " This is very important work. I believe the sustainable population is under one billion. Keep up the good work!"

Margaret Wyganowska - Australia
Terry Pyle - United Kingdom
Juan Manuel Velasquez Alvarez - Columbia
Deborah Tessman-McKenna - U.S.

Samantha Murphy - U.S. - " Not only do I plan on not having any biological children, I plan on adopting neglected children."

Mark Churchill - U.S. - " Thank you for having the courage to say what our "leaders" will not."

Cassandra Calling - United Kingdom - "Any attempt to encourage others to have smaller families is met with abuse, however gently or politely expressed. But I refuse to quit! Because it matters more than anything else. And I mean, anything else at all."

Teo Golja - Slovenia
Wendy Dugmore - Australia

Christian Roehr - U.S. - "Thank you for being a precious ever more needed voice that speaks up on this issue without fear and with clarity."

Steve Clark - U.S.
Skyler Freeman - Canada
Jon Gibb - Australia

Lorne Mossman- U.S. - "Simple things, individuals do, that cause world problems are multiplied to extremes because the world population is out of control."

Lily Espitia - U.S.
Jacob Bennett - Canada
João Abegão - Portugal

Daniel Jost - Switzerland - "I'm 37 and I had a vasectomy last year, so this is more than just a pledge."

Josefina Wickström - Sweden

Barbara Chinn - United Kingdom - "Over the years I've seen the carnage and devastation humanity is subjecting our beautiful world to so chose not to have children...the longer I live the more pleased I am with my decision."

Sandra Kass - Australia
Lee Pitts - United Kingdom
Celia Bourne - United Kingdom
Rob Harvey - Spain

Richard Parncutt - Austria - " Nothing is more valuable than children. For their sake we need fewer!"

Betty Orrin - United Kingdom
Tegan Dennjen - Australia
Carol McKinlay - United Kingdom

Christoper Padley - United Kingdom - "This is an important initiative, in fact the most important one of all."

Diana Keller - Norway
Richard Beauchamp - United Kingdom
Helen Sylvan - Sweden
Izabela Holospin - Canada
Mariana Garcia Solana - Mexico

Kisok Jung - South Korea - "Your work on world population matters is great!"

Rodrigo Vidal - Equador
Jeremy Randles - Wales

Sandra Martinez- U.S. - " People need to stop thinking about their own Wants and take a look at what is happening to the Earth around them: The only Earth we have and the one WE ALL share."

Eva Mendoza - U.S.
Shaun Steiner-Goldberg - United Kingdom
David Sanderson - United Kingdom
Helen O'Connell - United Kingdom

Tony Gilkerson - U.S. - " I hope that more people will discover that the best course of action for us is to reduce our numbers. "

Frank Snapp - U.S.
Ivan Cicin-Sain - United Kingdom
Laura Janisieski - U.S.
Carina Grace Behan - Ireland

Joanna Scanlan - U.K. - "My family line dies out with me but I still want to save this planet and all the other animals and life that is dependent upon it, because this world and everything that is part of it is amazing and too special to be ruined by us humans."

Perias Pillay - U.S.
Aro Love - Australia
Joanne Cockerill - Australia
Alexander Hay-Whitton - Thailand
Matt Doxsey - U.S.
Dion Trevarthen - United Kingdom

Frik Linde - South Africa - "Overpopulation is the major problem facing humanity."

Tymber O'Neal - U.S.
Diego Sogorb - U.S.
Alex Waits - Israel
Debby Chandler - U.S.
Tauqeer Alam - India

Arko Bose - India - "Human Overpopulation is the single root cause of every other issue or problem that plagues the planet. We are nothing without the planet and all the living beings and natural non-living things that exist here."

Fiona Barbolak - U.S.
Samarra McErvale - Australia
Robert Deschene - U.S.
Fiona Barbolak - U.S.
Leon Mccance - Spain

Steve Salmony - U.S. - " As enormous as the current, visible threats of nuclear war and climate destabilization are to future human well being and environmental health, we could "solve" these problems and a problem the size of a tsunami, one that dwarfs both climate change and nuclear conflagration, would still remain for the family of humanity to acknowledge, address and overcome:OVERPOPULATION!"

Natalya Koltsova - Russia
Simon Sobrero - United Kingdom
Luis Zardo - Brazil

Marcus Dredge - United Kingdom - "Given the many predicaments humans are driving (runaway climate change, increased farmed animal exploitation, Sixth Great Extinction event, ever earlier ecological overshoot, etc.) I don’t wish to add to the daily 400,000 births nor make the potential new human suffer."

Nicolaj Ortmeyer - Denmark
Craig Hollingsworth - U.S.
Simon Sobrero - United Kingdom
Andrea Shapley - U.S.
Ruslan Abbasov - Azerbaijan

Rosie Wood - United Kingdom - "Every child deserves to be healthy, safe and happy. Easier when each child is planned and wanted - and that means all nations having fewer of them."

Leland Brun - U.S.
Sabrina Ortiz - U.S.
Raekwon Madden - U.S.

Adrian Hill - United Kingdom - "ALL governments have been and are guilty of 'Crimes Against Humanity' for not highlighting the dangers of overpopulation."

Alice Fedor - U.S.
Rebecca Cameron - U.S.
Christy Ervin - U.S.

Alexis Watie - U.S. - "By refusing to have a child, I’m preventing 9,500 new tons of CO2 per year from entering the atmosphere."

Tina Horowitz - U.S.
Daniela Bier - Germany
Myriam Pelkmans - Netherlands
Quintijn Hoogenboom - Netherlands
Kristjan Fenrir Sigurdarson - Netherlands

Chelsea Reidhaar - U.S. - "When asked why I don't want kids by other women who have them, I like to answer, "By my choice to not reproduce, I'm leaving more resources for your kids to consume when they become severely limited. They tend to stop asking after that, and some thank me."

Elizabeth Lee - United Kingdom
Stuart Thrupp - Australia
Sju G. Thorup - Denmark
Laura Oken - Denmark
Sarah Amos - United Kingdom

Ilkka Tyrskyluoto - Finland - "Everyone who truly, deeply loves children and the environment simply cannot bring themselves to have any. I am one of those people."

Julia Kirsan - Russian Federation
Laura Badaro - Brazil
Paige Bentley - United Kingdom

Colin Fanstone - United Kingdom - "In my lifetime the world population has tripled, this is clearly not sustainable. Any increase is not sustainable because even slow growth would end with the same result in the end."

Crystal Hunter - U.S.
Stephanie C. Fox - U.S.
Sergey Rogozinskiy - Russia
Justin Kent - United Kingdom
Jordan Dunn - United Kingdom
Michelle Wells - U.S.
Alice Hayward - Australia
Olga Tylova - Czech Republic
Thomas Brinkman - U.S.
Ben Turnbull - United Kingdom

Arthur Charette - Canada - "We are depleting our children's future."

Melody Modica - U.S.
Darapaneni Vinay Choudary - India
Sara Yang - U.S.
Tasnim Tabassum Khan Autry - Bangladesh
Tracy Allard - Canada

Lynn Rowan - U.S. - "The greatest negative impact anyone can have to the survival of wildlife is to have a child."

Abdul Malik - Pakistan
Allie Bannister - United Kingdom
Myron Hill - U.S.
Ko Stears - U.S.
Matthew Schaut - U.S.

Tisha Mayer - U.S. - "This is the true problem which all countries need to address. We need to get the word out!"

Richard Horner - United Kingdom - "Keep up the good work. Looking forward to more podcasts! Hopefully we can get this subject mainstream soon."

Andrew Costello - U.S. - " I am so happy that I am not the only one who wants to save the world from overpopulation."

Treyvon Nelson - U.S.
Jonna Curtiss - U.S.