Global population has hit 8 billion

The world population has hit 8 billion, a milestone which has been widely discussed in the media. In this article originally published by The Hill, William Ryerson of the Population Media Center and Kathleen Mogelgaard of the Population Institute reflect on the economic and environmental effects of this milestone. By William Ryerson and Kathleen Mogelgaard … Continue reading Global population has hit 8 billion

Smaller human populations are neither a necessary nor sufficient condition for biodiversity conservation

That’s the title of a paper just published in Biological Conservation in response to TOP’s recent paper on population and biodiversity loss in that journal. Are its authors right? by The Overpopulation Project In one sense, Alice Hughes and company clearly are correct. Efforts to protect wild nature are ongoing throughout the world, and for … Continue reading Smaller human populations are neither a necessary nor sufficient condition for biodiversity conservation

Boiling Frogs

Human population growth has exploded during the last century, decimating wildlife and devastating ecosystems. Without honest conversations about overpopulation, continued growth will likely condemn most wild animals to extinction and leave us with a much poorer planet By Brad Meiklejohn "Fewer people, more wild animals. Right now that feels like coming back from a time … Continue reading Boiling Frogs

The Great Multiplier

At the end of 2022, the Wittgenstein Centre for Demography and Human Capital held a conference titled Population and Climate Change: The Defining Relationship of the 21st Century. Yet as one participant noted, in this presentation from the conference, the desire to downplay population’s importance is hard to avoid, even among those who should know … Continue reading The Great Multiplier

Eight Billion – Our Greatest Mistake

According to the United Nations Population Fund, reaching a global human population of 8 billion is an achievement to be celebrated. In “a world of infinite possibilities,” they state, “imagine the boundless paths 8 billion can take.” Rather than taking refuge in irresponsible fantasies, it’s time our bloated societies reckoned honesty with demographic reality. By … Continue reading Eight Billion – Our Greatest Mistake

The per capita fallacy

Are many tiny ecological footprints more virtuous than fewer, larger ones? Will they be better for the Earth, or easier to accomplish? These hard questions need to be asked as humanity hurtles past 8 billion people and deeper into ecological overshoot. By Gaia Baracetti You've all heard the argument: high birth rates in poor countries … Continue reading The per capita fallacy

More like a dying planet report

Earth continues to hemorrhage biodiversity, according to the latest Living Planet Report. Unfortunately, its authors cannot manage a clear statement of how to stop the bleeding. by The Overpopulation Project “You could think of it as a health check for the planet,” says the World Wildlife Fund, introducing its most recent biennial Living Planet Report, … Continue reading More like a dying planet report

Is it wrong to explore the connections between overpopulation and biodiversity loss?

A recent letter in Biological Conservation criticizes TOP researchers for writing about how more people means less space for wildlife. We are curious what our readers think of the arguments and how you would respond. Please share your suggestions in the on-line comments below. by The Overpopulation Project This summer, TOP researchers published an article … Continue reading Is it wrong to explore the connections between overpopulation and biodiversity loss?

Population and the Great Transition

In June, the Great Transition Initiative ran a month-long forum under the title The Population Debate Revisited. The collection of contributed essays is now accessible on the GTI’s site, and makes for interesting reading. We thought three of the essays held particular merit and will republish them here over the next few weeks. The first … Continue reading Population and the Great Transition

Elon Musk is wrong about population growth

Tech entrepreneur and multibillionaire Elon Musk claims that underpopulation rather than overpopulation is the greatest threat that faces humanity, despite current destruction of nature and the millions of people living in extreme poverty. Dr. David Walker examines Musk's dangerous statements and sets the facts straight. By Dr. David Walker As a South African, I must … Continue reading Elon Musk is wrong about population growth

Growing populations increase the risk of pandemics

Thank you, László We begin this week’s blog by gratefully highlighting the memory of László Szombatfalvy, Stockholm, who recently died at the age of 94. In his book The Greatest Challenges of Our Times László describes overpopulation as the overarching threat to Earth and humanity, above other existential threats. He and his research foundation supported … Continue reading Growing populations increase the risk of pandemics

3 Women, 2 Countries, 1 Voice for World Population Day 2022

For those times when we feel worn down by the thanklessness of campaigning for population sustainability, it can be uplifting to hear the voices of veteran campaigners whose courage has never wavered. Michael Bayliss introduces us to a conversation to inspire. by Michael Bayliss In the most recent episode of Post-Growth Australia Podcast (PGAP) I … Continue reading 3 Women, 2 Countries, 1 Voice for World Population Day 2022

Two ways to argue for population’s importance

Here at TOP, we are often asked how we define overpopulation and whether it’s a helpful concept. Good questions! Below I propose a definition of overpopulation, after first considering the suggestion that it’s not necessary or helpful to deploy the term, even —or especially! — if we want to convince our societies to accept good … Continue reading Two ways to argue for population’s importance

What have you learned in school about population? Please tell us!

Many of our readers may have memories from their school years of lessons about population growth – or perhaps memorable situations when population talk was avoided. As far as we know, there are few studies regarding how population is taught around the world. TOP wants to know more about this, whether your memories are from … Continue reading What have you learned in school about population? Please tell us!

Population in the IPCC’s new mitigation report

A new IPCC climate change mitigation report confirms that population increase and economic growth are the main drivers of today’s historically high greenhouse gas emissions. But that scientific information has been censored and removed from the Summary for Policymakers distributed to the world’s press and the public. Does a problem disappear if we don’t mention … Continue reading Population in the IPCC’s new mitigation report

The Making of 8 Billion Angels

8 Billion Angels is a rare full-length environmental film focused on population issues. Producer Terry Spahr joins Phil Cafaro for a discussion of the making of this fascinating film in an episode from season two of The Population Factor.  by the Overpopulation Project 8 Billion Angels is both visually stunning and thought-provoking. If you haven’t … Continue reading The Making of 8 Billion Angels

Ethicists recognize that limiting population growth is key to addressing climate change

Faced with the reality of global climate change and its devastating impacts, climate ethicists have begun to address the role of population and the need for limits to growth. A new review article reports on this welcome development. by Philip Cafaro During the past 30 years of extensive political debate about global climate change, participants … Continue reading Ethicists recognize that limiting population growth is key to addressing climate change

Limits to Sustainability, Population, and the TEDx Experience

A recent TEDx talk delves into our species' reverence for economic and population growth, which is pushing us - and the natural world – outside our safe operating space. In 'Limits to Sustainability', João Abegão attempts to communicate the expanding footprint of our species by comparing it with transformations suffered by past complex societies. By … Continue reading Limits to Sustainability, Population, and the TEDx Experience

The most ethical gift: Towards a sustainable demographic future

Demographic changes are not immediate, but rather take a long time to happen. In an article originally posted in The Ecological Citizen, Joe Bish argues that the population discussion needs to be reframed as an  imperative to achieving a long-term sustainable civilisation, rather than an overriding priority for near term goals. By Joe Bish The … Continue reading The most ethical gift: Towards a sustainable demographic future

Students view human population growth as a threat to biodiversity

In their curriculum, university students in biology and environmental sciences rarely learn how human population growth affects the environment, or discuss its role relative to other factors. Human activities are often dealt with in courses, but not population increase. One exception, described below, comes from a Swedish ecology class that learned about and discussed how … Continue reading Students view human population growth as a threat to biodiversity

The moral case for population reduction

A frequent assumption in population policy debates is that stabilizing populations will be sufficient to achieve ecological sustainability. But as Karin Kuhlemann observes, “that a population’s size is stable in no way entails sustainability. It may be sustainable, or it may be far too large.” A recent book from philosopher Trevor Hedberg convincingly argues the … Continue reading The moral case for population reduction

Honouring World Population Day with Women’s Personal Stories

A new initiative aims to draw attention to stories about population and consumption from women around the world to mark World Population Day. The focus lies on personal experiences and encourages a greater discussion about the links between population, consumption, and protecting nature. By Pernilla Hansson World Population Day is held every year on the … Continue reading Honouring World Population Day with Women’s Personal Stories

Two radical ideas whose time has come

Increasing economic inequality and accelerating ecological decline are the two great political challenges facing nations today. In recent decades, many complicated efforts to address these problems have been proposed or tried, but the problems have continued to worsen. Perhaps it is time to address them more directly. by Philip Cafaro I came of age politically … Continue reading Two radical ideas whose time has come

Earth Wars: Nature Strikes Back

The current pandemic has had many severe consequences, but it has also acted as a reminder of the need for international cooperation when facing global challenges. Continued environmental destruction will likely increase the risk for future pandemics. Population growth is one of the main driving factors of the continued encroachment into nature and needs to … Continue reading Earth Wars: Nature Strikes Back

Are we overpopulated already?

With the world’s population growing by more than 80 million annually, the environmental case for addressing population growth seems clear. But is Earth overpopulated already? And what might be a sustainable human population? Recent episodes of EarthX TV’s The Population Factor address these questions and explore solutions to humanity’s continued demographic expansion. by The Overpopulation … Continue reading Are we overpopulated already?

Demographers fail to acknowledge the effect of population growth on climate change

A recently published article asked European demographers about their attitudes towards climate change and population growth. It shows that while most demographers are in agreement on the need to act on climate change, the effect of population growth is largely not understood. By The Overpopulation Project An article published in March this year in the … Continue reading Demographers fail to acknowledge the effect of population growth on climate change

Humanity needs to halt both population growth and climate change

Many of today's environmental problems are more due to population growth than climate change, and climate change is driven in part by continued global population growth. Development funding to make family planning and modern contraceptives universally available could make a big difference in solving these interlocking problems. By Malte Andersson, Frank Götmark, and Anders Wijkman … Continue reading Humanity needs to halt both population growth and climate change

Survey shows the general public is ready for discussions about population

A new survey from the Global Challenges Foundation shows wide concern about population growth and overpopulation in many parts of the world. by Pernilla Hansson In an attempt to assess the general public’s understanding of global catastrophic risks, the Global Challenges Foundation (GCF) recently carried out a large survey among people in 10 countries: Australia, … Continue reading Survey shows the general public is ready for discussions about population

New television show dedicated to population debuts

After months in the works, a new television program devoted to exploring all aspects of the population / environment connection is now streaming free on demand. Dallas-based EarthX TV hosts The Population Factor, whose first episode features an interview with environmental legend Paul Ehrlich. Two other episodes follow: one about the challenges of limiting climate … Continue reading New television show dedicated to population debuts

10:59 – time to address population?

The population crisis lies at the core of the first full-length novel by British author N. R. Baker, an eco-thriller called 10:59. Through a well-developed storyline, it details the destruction caused by our ever-growing population, following a compelling main character as he joins an organisation intent on saving the planet. Ms. Baker manages to balance … Continue reading 10:59 – time to address population?

‘A Life on Our Planet’: Attenborough’s recipe and human reluctance — Chronicle of a failure foretold

"Never let your sense of morals prevent you from doing what is right" I. Asimov In the outstanding film “A life on our planet”, Sir David Attenborough tells us which actions we need to implement to avoid a future catastrophe. His plan is feasible and affordable: we already have all the knowledge and technology required … Continue reading ‘A Life on Our Planet’: Attenborough’s recipe and human reluctance — Chronicle of a failure foretold

A Decreasing Population Furthers Rewilding Efforts in Romania’s and Ukraine’s Danube Delta

Since the fall of the Eastern bloc, both Ukraine and Romania have seen their populations shrink. Driven by rural to urban migration, low fertility rates, and substantial emigration, the depopulation in the Danube Delta region has opened up large areas to rewilding efforts. With a history of irrigation and altered river dynamics, restoration and reintroduction … Continue reading A Decreasing Population Furthers Rewilding Efforts in Romania’s and Ukraine’s Danube Delta

Earth overshoot day and population

Too many people consuming too many resources and generating too much waste: that’s why humanity keeps pushing deeper into ecological overshoot. On Earth Overshoot Day, let's not forget the P factor.  by Lucia Tamburino & Philip Cafaro Every year on Earth Overshoot Day, a table like the one below makes the rounds, showing the number … Continue reading Earth overshoot day and population

Climate refugees or overpopulation escapees?

In recent years, migrants fleeing overpopulation and lack of economic opportunity have been rebranded as “climate refugees” by corporate media looking to justify open borders. But expanding migration will simply fuel continued population growth, leading to greater resource consumption, higher greenhouse gas emissions and worse climate change. It's a Ponzi scheme perpetuated by falsehoods that’s … Continue reading Climate refugees or overpopulation escapees?

Will global population peak below 10 billion?

A major media storm has erupted about a new scientific paper published in the Lancet claiming that global population will soon peak and decline. The prospect is met with doom and gloom, rather than jubilation. But Jane O’Sullivan finds many reasons to challenge both the claim and its assumed economic threat. By escalating unfounded fears … Continue reading Will global population peak below 10 billion?

New book argues for a sustainable world with 3 billion people

In his new book A Planet of 3 Billion, Christopher Tucker presents a vision of a future world inhabited by 3 billion people, compared to 7.8 billion today. Inspired by Joel Cohen’s 1995 book How Many People Can the Earth Support? Tucker sets out to answer exactly this question. The ecological destruction caused by humanity … Continue reading New book argues for a sustainable world with 3 billion people

Lessons from a global pandemic

Covid-19 continues to take a great toll on societies around the world. As we struggle to respond appropriately, our societies can emerge ecologically and socially stronger—provided we learn the important lessons this tragedy has to teach us. by Kelvin Thomson In Australia, and I suspect in many other countries as well, there are three key … Continue reading Lessons from a global pandemic

Overshoot day: the other side of the coin

Every year on Earth Overshoot Day, a table becomes very popular, showing the number of Earths needed to be ecologically sustainable if all the people in the world had the same ecological footprint as the average citizens of various countries. This is computed by fixing the world population at the current value and varying the … Continue reading Overshoot day: the other side of the coin

New EU Biodiversity Strategy Fails to Address a Key Component of the Biodiversity Crisis – Human Numbers

The latest biodiversity strategy from the EU Commission makes some good suggestions for increasing protection for Europe’s dwindling biodiversity. While new, ambitious targets for protected areas and ecological restoration are welcome, the document fails to point out the central role population size will play in whether they are achieved. Through allowing the EU’s human population … Continue reading New EU Biodiversity Strategy Fails to Address a Key Component of the Biodiversity Crisis – Human Numbers