Nandita is the Executive Director of Population Balance, a non-profit that educates about—and offers solutions to address—the impacts of human overpopulation and over-consumption on the planet, people, and animals. A humane educator and a passionate advocate for planetary health...

Dr Lizzy Andrew-Essien is a professor of systems ecology at the University of Calabar, Nigeria. She works on ecosystem resilience and how social and industrial processes facilitate economic growth and urbanization, which can improve quality of life, but also increase ecological ...

Amanda Janoo is the Wellbeing Economy Alliance’s (WEAll’s) knowledge and policy lead. She is an economic policy expert with rich experience with governments and global development institutions. She aims to build just, sustainable economies...

Joseph started his first business at sixteen years old and has founded a number of organisations since. Within these he has developed new concepts like setting commercial limits to growth and profit. His exceptionally ethical approach to business has gained him a...

Psychologist Linda Chang is deeply interested in behavior change as it affects sustainability, hyperconsumption, climate change and inequaliy. She has a Harvard psychology PhD, Yale BA, and postdoc at the Behavior Change for Good Initiative, Univ. of Pennsylvania's Wharton School of Business...

Suzanne York is the director of Transition Earth. She has reported on international human rights, globalization, and environmental issues for nearly three decades. Her work is focused on the interconnectedness of population growth with women’s empowerment, human rights...

Dutch journalist, author, editor and founding CEO of Right Now!, Paul van Engen is mobilizing 1.5 bn followers of global faith leaders who met at the Vatican in October 2021, calling on humanity to take urgent, radical, responsible action on the climate emergency. In response to faith leaders...

Dr Carl Safina’s writings explore how we are changing the natural world and what the changes mean for human and non-human beings. Carl sees that the durability of human dignity and survival of the natural world will depend on each other; we cannot preserve the wild unless we preserve...

Dr Cécile Ndjebet is an agronomist, forester, gender specialist and women’s leadership trainer and adviser. She holds a MSc in social forestry from Wageningen Agricultural University and a PhD on women’s access to land in coastal Cameroon from Central Africa Catholic University....

Carter's ethics, legal and policy career started with the US Dept of Justice, and his thesis and 2021 book "Justice as a Fair Start in Life" reframed the right to have children in inter-generational and child-centric terms. He is Policy Director of the Fair Start Movement, where future children are a specially...

Laura is a goal-driven lawyer and barrister in Nigeria with the zeal to build a better world with her practice of law and her policy research. She is passionate about legal and practical solutions using corporate and commercial law, litigation, and public policy...

Amy is the WILD Foundation's Vice President of Policy & Communications, and has spent the last 15 years researching the building blocks of collective action. She has brought this knowledge to bear in her own work as an award-winning nonprofit leader...

Bill is founder and President of Population Media Center, which strives to improve the health and wellbeing of people around the world through the use of entertainment-education strategies. PMC creates long-running serialized dramas on radio and television, in which characters evolve into...

Filmmaker and multimedia director John Bowey works on big-picture issues challenging society today, from conflict resolution, identity and history, to sustainability, biodiversity, climate change, justice, health, science, innovation, technology, identity, entrepreneurship and interfaith dialogue...

Lora Pennington is a respected cultural teacher, an elder of the Upper Skagit tribe in the Salish Sea region bridging northwestern USA and southwestern Canada, and a teacher of Lushootseed, the language of Chief Seattle (Si?al). A great-niece and cultural inheritor of the work of Vi Hilbert...

Richard is Senior Fellow of Post Carbon Institute, and is regarded as one of the world’s foremost advocates for a shift away from our current reliance on fossil fuels. He is the author of fourteen books, including some of the seminal works on society’s current energy and environmental crisis...

Dr Karen Hardee is president and CEO of the What Works Association. She has a PhD in social demography from Cornell University, and >25 years of international technical and leadership experience working with bi- and multilateral organizations, nongovernmental organizations...

Elise Buckle is President and CEO of Climate & Sustainability, based near Geneva, Switzerland. Co-founder of SHE Changes Climate, facilitator of the Planetary Emergency Partnership and other initiatives, Elise is highly committed to making this world a better place for people and nature.

Susan Allen, MD, MPH, is a Professor in the Schools of Medicine and Public Health at Emory University in Atlanta, and the founder of the Rwanda-Zambia Health Research Group. Since 1986, Dr Allen and colleagues have researched and implemented programs...

Eileen is Associate Professor Emerita of Science, Technology, and Society at Virginia Tech. She holds a BA and PhD in Sociology. Her work focuses on the ecological crisis and its root causes and pathways toward creating an ecological civilization...

Vicki Robin is a well known and prolific social innovator, cultural scout, writer and speaker. She hosts the YouTube podcast interview series, What Could Possibly Go Right?, inviting cultural scouts to shine a light on what’s emerging as the pandemic, climate, and economy unravel...

Dr. Phil Cafaro is a philosophy professor focused on environmental ethics and preserving wild nature. Past president of the International Society for Environmental Ethics, Phil hosts The Population Factor on Earthx TV and is co-principle investigator of The Overpopulation Project...

Emeritus professor of environment and society at the Australian National University (ANU), Dr Will Steffen is one of the godfathers of the ‘stable planet’ paradigm. He has a long and deep history in international global change research, serving 1998-2004 as executive director of the IGBP...

Peter is a co-founder of Stable Planet Alliance, and an MIT-educated physicist and Silicon Valley entrepreneur and philanthropist with 27 patents. He has 30 years’ experience as a citizen lobbyist for poverty and climate issues, and over the past decade has been working to build...

Dr Chris Tucker is a co-founder of Stable Planet Alliance, author of A Planet of Three Billion, and Chair of the American Geographical Society. Chris’s work with Stable Planet Alliance emphasizes a geographically-grounded understanding of the demographic stress on our planet, leading to...

Dr Abi Raji is a young community ecologist and educator passionate about biodiversity conservation, people and their relationship with the environment. She works on ecosystem services, land-use impacts on biodiversity, behavioral ecology and community development...

Chidera Benoit is the Founder and Executive Director of Population Explosion Awareness Initiative (PEA Initiative), an indigenous Nigerian non-profit dedicated to raising awareness about the exponential rate at which that country's population is growing,...

Jose "Oying" G. Rimon II is the Director of the Bill & Melinda Gates Institute for Population and Reproductive Health at the Johns Hopkins Bloomberg School of Public Health, and concurrent Principal Investigator of the The Challenge Initiative (TCI). Oying is a senior scientist...

Wana Udobang is a writer, poet, performer and storyteller in Lagos and London who has performed around the world. Wana has freelanced with The Guardian, Aljazeera, CNN, Observer and produced and presented documentaries for BBC Radio4 and BBC World Service. She was a...

Terry Spahr directs Earth Overshoot, a nonprofit dedicated to making nature and its resources central to personal and public decisionmaking through targeted education and advocacy. Spahr, a filmmaker, naturalist and activist, is an expert on sustainability and the intersection of...

Dr Bill Rees is a human ecologist, ecological economist, professor emeritus and former director of the University of British Columbia’s School of Community and Regional Planning in Vancouver, Canada. He is best known in ecological economics as the godfather of...