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Library & Scholarship

Welcome to the Global Population Speak Out's Library and Scholarship page.


Here is where we collect and keep a select number of important research papers, opinion pieces and journalistic documents related to the many facets of population as a sustainability issue. Together they form the GPSO reading list.

We provide PDFs of the work when possible (see bottom of the page), and a link to the website of origin. 

We strongly encourage submissions.


  • Anglican Church, Australia
  • Paul and Anne Erhlich
  • Francis Kissling
  • Frederick Meyerson
  • Brian O'Neill
  • William Ryerson

Anglican Church, Australia

A Discussion Paper on Population Issues. "Most people in developed countries, including Australia, have benefited hugely from the resources of the Earth. Until recently we did not have compelling evidence of the problems caused by the growth in human numbers and consumption, but now we do. Our awareness makes us responsible to do our best for the future. This is not about guilt for the past, but about responsibility for the future. We continue to celebrate the joys of children, families, communities, and the wonderful natural world around us but now, in words from Lambeth, with a much clearer awareness of our ‘God given mandate to care for, look after and protect God's creation’ (see below), and a focus on the beautiful expression of Thanksgiving 5 in our Prayer Book:

‘Loving God, we thank you for this world of wonder and delight,
You have given it to us to care for, so that all your creatures may enjoy its bounty,
Lord our God, we give you thanks and praise.’"


Ehrlich, Paul and Anne

The Culture Gap and Its Needed Closures. "The development of an enormous culture gap, in which no individuals of advanced societies possess even a billionth of the non-genetic information possessed by their entire society, has threatened a global collapse of civilization. Critical parts of that gap must be rapidly bridged so that problems such as climate disruption, toxification of the Earth, loss of biodiversity and ecosystem services, and the decay of the epidemiological environment can be satisfactorily attacked. The essential need is to alter human behavior to put society on a route to sustainability; one cheering development is a growing interest in the Millennium Assessment of Human Behaviour (MAHB), whose goal is to do just that."


Kissling, Francis

Reconciling Differences: Population, Reproductive Rights and The Environment. "...Personal autonomy is a core bioethical value and cannot be violated in the delivery of reproductive health services or in policy. Women and girls must be respected as competent moral agents capable of making good decisions about when and whether to bear children. It is not unreasonable for states to educate and inform men and women about the role that individual decisions about reproduction will have on the community; in fact, it is responsible for the state to bring these issues to people’s attention..."

Chapter 31 from the book, "A Pivotal Moment: Population, Justice and the Envrionmental Challenge." Edited by Lauire Mazur.

Read the full essay.

Visit the Population Justice Website.


Meyerson, Frederick

Population, bio-diversity and human well-being. "...Biodiversity and habitat conservation to support the shrinking array of species may win minor battles in the competition for solar energy and physical space, but biodiversity will lose the war, as long as humanity continues to grow. This conclusion is not new, but recent sobering news about population trends, climate change, and mitigation proposals reinforces it.

Over the past decade, the United Nations has raised its medium population projection for 2050 from 8.9 to 9.2 billion (the current population is 6.8 billion); 300 million additional people will eat a lot of food, use more energy, and do major damage to ecosystems and species. More disturbing is that those UN projections are based on the unfounded and unlikely core assumption that the “total fertility rates” of all countries will mathematically converge at 1.85 children per woman shortly after 2050 and then hold steady."

Population, bio-diversity and human well-being Frontiers in Ecology and the Environment 2009; 7(10): 511, reproduced with permission from the author and the Editor of Frontiers. The author is Fred Meyerson, Ph.D., J.D., professor of Demography, Ecology and Environmental Policy, University of Rhode Island. He is an endorser of GPSO 2011.

Read the full article (PDF)


O'Neill, Brian et al.,

Global demographic trends and future carbon emissions, 2010. "Substantial changes in population size, age structure, and urbanization are expected in many parts of the world this century...  slowing population growth could provide 16–29% of the emissions reductions suggested to be necessary by 2050 to avoid dangerous climate change. We also find that aging and urbanization can substantially influence emissions in particular world regions."


Ryerson, William

Population: The Multiplier of Everything Else. "Advocates and activists working to reduce global population growth and size are attacked by the Left for supposedly ignoring human-rights issues, glossing over Western overconsumption, or even seeking to reduce the number of people of color. They are attacked by the Right for supposedly favoring widespread abortion, promoting promiscuity via sex education, or wanting to harm economic growth. Others think the problem has been solved, or believe that the real problem is that we have a shortage of people (the so-called “birth dearth”). Still others think the population problem will solve itself, or that technological innovations will make our numbers irrelevant."