In 1972 four young scientists at MIT wrote a book called The Limits to Growth that shocked the world and became an international best-seller. Using the World3 computer model, the authors looked into the future and sounded an alarm, for the first time showing the consequences of unchecked growth on a finite planet. Their book gained worldwide attention and became the cornerstone of a global debate on how to achieve a sustainable future.

Twenty years later the authors wrote Beyond the Limits, a follow-up volume that showed humanity was already overshooting Earth's limits. Beyond the Limits again provoked a national debate and galvanized the scientific and environmental academics leaders to incorporate Limits to Growth into the core environmental studies curriculum.

Now Limits to Growth: The 30-Year Update brings data on overshoot and global ecological collapse to the present moment. It provides a short course in the World3 computer model, types of growth, and the various kinds of overshoot likely to occur in the current century. While it remains to be seen whether public policy will respond effectively and in time to problems such as climate change, this book makes a compelling case for the vital need for a Sustainability Revolution.

"Updated for the second time since 1992, this book, by a trio of professors and systems analysts, offers a pessimistic view of the natural resources available for the world's population. Using extensive computer models based on population, food production, pollution and other data, the authors demonstrate why the world is in a potentially dangerous 'overshoot' situation. Put simply, overshoot means people have been steadily using up more of the Earth's resources without replenishing its supplies. The consequences, according to the authors, may be catastrophic: 'We... believe that if a profound correction is not made soon, a crash of some sort is certain. And it will occur within the lifetimes of many who are alive today.' After explaining overshoot, the book discusses population and industrial growth, the limits on available resources, pollution, technology and, importantly, ways to avoid overshoot. The authors do an excellent job of summarizing their extensive research with clear writing and helpful charts illustrating trends in food consumption, population increases, grain production, etc., in a serious tome likely to appeal to environmentalists, government employees and public policy experts. (June)" Publishers Weekly (Copyright 2004 Reed Business Information, Inc.)

Previous editions are cited in Books for College Libraries, 3d ed.. The third edition of a pessimistic environmental classic presents the essential parts of the original analysis--published in 1972 by four MIT scientists using system dynamics theory and computer modeling--and summarizes relevant data and insights of the past three decades. The authors write that their main goal is to restate the 1972 argument in a way that's more understandable and better supported by examples that have emerged since then. They don't claim to predict the future, but instead present 10 scenarios for how the 21st century might evolve given current growth trends, emphasizing that likely damage to air, water, ozone, fisheries, forests, etc. can be reduced by smart policy now.
Annotation ©2004 Book News, Inc., Portland, OR (booknews.com)

Review of Limits to Growth: The 30-Year Update
By John N. Cooper
From AxisofLogic.com
Feb 13, 2005
This is a wonderful book. Originally published in 1972 as Limits to Growth and refreshed in 1992 in Beyond the Limits, the authors have now issued a 30-year appraisal [Chelsea Green Publishing, ISBN 1-931498-58-X], in which they examine the progress made both in their understanding of the mechanisms underlying the impact of humanity on the world ecology and of steps taken toward remediating the accelerating approach to trainwreck that is mankind's ill-managed and uncontrolled [footprint' on this planet's environment.
Briefly, humanity has overshot the limits of what is physically and biologically sustainable. That overshoot WILL lead to the collapse of the planetary environment's ability to support not only our species but much of the rest of the biosphere if we do not act rapidly and effectively to reduce our footprint. These conclusions provide reasons for both optimism and alarm: optimism because humanity has demonstrated its capacity to act appropriately in one specific instance; and alarm because thirty years have been largely wasted since the consequences of our failing to act were detailed. There is still time but the need to act quickly and effectively is urgent. The authors demonstrate that the most critical areas needing immediate attention are: population; wasteful, inefficient growth; and pollution. They show how attention to all three simultaneously can result in returning the human footprint on the environment to manageable, sustainable size, while sharply reducing the disparity between human well-being and fostering a generous quality-of-life worldwide. Absent this, the prospects are grim indeed.
The book is divided into three sections, the first outlining in principle the authors' systems analytical approach to understanding the planet's ecology. Their presentation is clear and comprehensible with an abundance of charts and figures that make visualizing the concepts easy. They successfully avoid the pitfalls of many technical presentations by using familiar analogies and largely avoiding professional jargon. As a result readers come away with insights not just into global interconnectedness of inputs, outputs, accumulation and feedback but also the significance of such dynamics in local, even personal, situations.
The second section deals with the authors' updated and revised modeling program, World3, which they utilize to test the plausible effects of changes in human political, economic and social behavior on the environment. Their discussion of World3 focuses on the assumptions for, and results of, a variety calculational scenarios. Details of their latest programming revisions are reserved for an index. Repeatedly they emphasize that their results are NOT prescriptive, but merely descriptive in general terms of likely consequences of humanity's failure or success in rising to meet the issues cited. Again excellent graphics for the various scenarios allow the reader to see at a glance what different approaches toward rectifying past, present and future environmental damage may have.
The final chapters describe options open to humanity that the authors believe have the best chance of avoiding social, economic and probably political collapse in the next century or so. We have a choice: the human experiment, possibly even the biological experiment, that is life on this planet can yet succeed and persist in a sustainable way. But to do so will require our species as whole consciously and deliberately to take immediate, remediating steps, now, seriously and adequately to address the issues we have so far failed to do so effectively. It IS up to us.

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