
TOP – Research and Outreach
Too many people consuming too much
A group of distinguished scientists have called for rapid action to reverse unsustainable population growth as threats to global ecological boundaries become more apparent. The evidence was set out at an online conference organised by Scientists Warning Europe to mark this year’s World Population Day. by Brian McGavin With the human ecological footprint already 170…
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…
Sometime this decade, India is set to overtake China as the most populous nation on Earth. Below, a reader from India reflects on what these immense numbers mean for his country’s future. Despite being in the position of being able to have a family of his own, he chooses not to in protest. For him…
What impact does US immigration policy have on greenhouse gas emissions, habitat preservation, or water and air pollution? Episode six of The Population Factor on Earthx TV addresses these questions, while episode seven, the final episode of season one, discusses how declining human populations open up new opportunities for ecological restoration. by The Overpopulation Project…
PM’s Alistair Currie looks at a disturbing rise in restrictions on women’s rights due to coercive population growth policies that put pressure on women to have larger families. By Alistair Currie Last year, the policy of the Chinese government to force women in its Muslim Uyghur minority to be sterilised, have abortions, or get fitted…
The unsustainable growth of the global population needs to be halted through informed voluntary action. Coercive population policies such as those used in China are unacceptable. On the other hand, many millions of women and couples around the world face pro-natalist forms of coercion, such as being forced to give birth to unwanted children, in…
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…
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…
The unsustainable growth of the global population needs to be halted through informed voluntary action, including empowerment of women, family planning and increased use of modern contraceptives. Coercive population policies such as those used for 35 years in China, in India 1975-77, and more recently in Peru, are unacceptable and must be condemned. But many…
After decades of silence, the International Union for the Conservation of Nature has passed a motion reaffirming the importance of addressing population matters to achieving conservation success. This continues a welcome recent trend among conservation scientists to speak up about the potential benefits of reining in population growth. by Pernilla Hansson The International Union for…
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…
A robust account of human responsibility, applied to humanity’s economic and demographic decisions, is the missing link in environmentalists’ endeavors to save our planet. Contemporary humanity has been misled by promises of rights without responsibilities, win/win solutions, and individual success without discipline or concern for the common good. “Back to basics” should be our battle…
Imagine there’s no countries. It isn’t hard to do. Serving our corporate masters. And pasting smiles on our faces, too … Or better yet, imagine a world where citizens control their own destinies, within a peaceful and environmentally sustainable international order. That’s the real way forward. by the Honorable Kelvin Thomson I am a big…
According to the IPCC, economic growth and increasing human populations are the two main drivers of global climate disruption. However, to date only efficiency improvements and technological changes have been seriously considered to meet the goals of the UNFCC’s Paris Agreement. In a new study, we examine how the parties to the agreement dealt with…
Like all government policies, population policies should respect human rights. But what does that mean in practice? Putting reproductive rights in the larger context of creating just and sustainable societies provides the best framework for answering that question correctly. by Philip Cafaro Issues concerning human rights loom large in population debates. On the one hand,…
The Overpopulation Project is pleased to announce its most recent publication, “Population growth and climate change: Addressing the overlooked threat multiplier” published in Science of the Total Environment. Through a review of national and global studies, the paper describes the emission reduction and vulnerability reduction benefits of slowing population growth, and outlines policies that can…
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…
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…
The ongoing environmental crisis has prompted philosophers to examine the ethics behind limiting procreation in an overpopulated world. A paper published recently by Greg Bognar of Stockholm University aims to demonstrate that anti-natalist policy stances need not violate procreative liberty and personal autonomy. By Ayaka Paul In his new paper, “Overpopulation and Procreative Liberty,” Professor…
Population growth depends strongly on fertility rates, so it is important to study factors that determine fertility. Despite much research, there is no consensus about the most important factors involved, except that contraceptive use can be effective. Factors correlated with declining as well as increasing or high fertility should be studied simultaneously. Religiosity is potentially…
Two years ago, over 15 thousand scientists signed the “World Scientists’ Warning to Humanity: A Second Notice,” about our interlocking global ecological crises. This year, 11 thousand scientists endorsed the new “World Scientists’ Warning of a Climate Emergency”, published November 5th in Bioscience magazine. Will world leaders and citizens take notice, come together, and act…
Researchers at TOP have published new population projections for all twenty-eight member countries of the European Union and for the EU as a whole. These projections differ from the 2019 United Nations’ Population Division projections and other recent projections in two main ways. First, they project a wider range of fertility and migration scenarios farther…
On the 25th of September, two core members of The Overpopulation Project attended the “Ethical perspectives on population and the sustainable development goals” workshop organized by the Institute for Future Studies in Stockholm, Sweden. At the one-day workshop, we gained valuable insight into how philosophers and political scientists frame the relationship between human population growth…
That was the front-page headline in the New York Times last Thursday, August 8th, announcing a new report from the IPCC, “Climate Change and Land.” I’m kidding, of course. The actual headline read “Climate Change Threatens the World’s Food Supply, United Nations Warns,” and the article did not mention population once. By Philip Cafaro The…
In April, TOP researchers organized a climate change seminar as part of the Gothenburg International Science Festival. Guest speakers were invited to discuss the role of population, affluence and technology in climate change solutions. The first presentation highlights how addressing population is a necessary measure to successfully mitigate and adapt to climate disruption. A recording…
By The Hon. Kelvin Thomson It has been great to re-live the Apollo 11 Moon Landing’s 50th Anniversary. What a monumental achievement and tribute to human intellectual candlepower, endeavour and above all courage. I was a Year 9 student at the time; like other classes we downed tools to watch it unfold. Our teachers were…
Between toxic calls for immigration controls based on racial criteria and hyperbolic denunciations of any mention of population issues as “ecofascist,” the room for intelligent and honest discussion of immigration policy is being gobbled up from both the Left and the Right. Yet the issue is too important to leave to the yahoos or the…
By Phil Cafaro In the run up to elections to the European Parliament in May, 2019, the coalition of European Green parties has put forth a statement of principles and political goals: “Priorities for 2019: What European Greens Fight For.” Organized around twelve key goals, all in line with “core Green values that we pursue…
By John McKeown Empty Planet moves confidently from an optimistic premise to unwarranted conclusions. It has been reviewed favourably by Steven Pinker, The Wall Street Journal and the New Statesman, among others. Its premise is that world population will peak far lower and sooner than the UN forecasts, and that because of a faster-than-expected decline in…
By Phil Cafaro Steve Irwin. Errol Flynn. The Sydney opera house. Kangaroos. Wombats. Here at TOP, we hardly need new reasons to love Australia. Yet last week, we came across two more: articles by Dr. Harry Recher and Dr. Freya Mathews that we somehow missed when they were first published several years ago. They do…
With a focus on fifty-six years of advising governments on policies and programs to achieve population stabilization By Bob Gillespie, President, Population Communication In 1938, when I was born, the global population was 2.2 billion. Today there are 7.7 billion. A child born today, who lives to 80, will witness 5.5 billion more deaths of humans…
































