"Life on the Brink" is a rich, timely, and comprehensive resource for understanding and acting on the immense and pressing threat of human overpopulation. Essays from leading conservationists, environmental philosophers, anthropologists, and others highlight the reasons for population growth, why little is currently being done to address the growth, and the current and future consequences of human numbers continuing to rise unchecked.
While some of the major facts and arguments presented in the anthology are repetitive (probably due to essays being submitted independently), the repetition underscores the seriousness of the challenges and lays the foundation for action.
Here are two passages to illustrate the general tone:
"Making parenthood a limited right could be the only humane solution in a world with ever-expanding human populations and rapidly diminishing resources. A finite resource base cannot sustain unrestricted growth- that is a basic law of ecology and cannot be changed to suit human desires" (Watson, 136).
"The dominant culture (pardon the repetition: including the Left) is so myopically centered on human affairs that Earth has become merely a stage for humanity's dramas. Human supremacy has ensconced widespread indifference toward the plight of nonhumans and their homes; it ignores, and keeps itself ignorant of, their reproductive rights, as individual and as species...Our conceit has made us so imagination-poor that we cannot fathom that future people, disabused perhaps of our own species-small-mindedness, will desire to live in a world rich in kinds of beings and kinds of places" (Crist, 150).
Like any good anthology, the essays function together to build a dense web of information, each looking at the issue of human overpopulation from a slightly different viewpoint, while reinforcing the core message.
The message is urgent: overpopulation and overconsumption, the effects of which are already being felt and will continue to grow, are very likely to result in immense and unprecedented levels of suffering, vast losses of species and lands (the sixth extinction), and an increasingly bleak and empty world in which humans are left to face only ourselves and our endless desires, having suffocated everything else. It's not a pleasant picture.
And yet, as many of the essays highlight, the issue of overpopulation seems to be one few people are acutely aware of, and one that has been given very little recent attention, both in terms of media coverage and within major environmental organizations and public policies.
Example of this are the mostly cursory, or non-existent, coverage of the issue in popular media (a recent New York Time piece "Room for Debate: Is Overpopulation a Legitimate Threat to Humanity and the Planet?" (June 2015), received fewer than 100 comments, in comparison to the thousands of comments that frequently pour in on topics such as the latest presidential election news), and the fact that tens if not hundreds of billions of dollars are spent each year on a variety of "counter-terrorism" measures while US expenditures on global family planning continue to be just of fraction of the total budget (about $608 million in 2016).
This is why anthologies such as "Life on the Brink" are crucial, despite the seeming low level of readership. We must increase awareness and act. Eventually, when cities are overflowing, water is running out, species are disappearing at ever-faster rates, and global conflicts, mass migrations, and disease are more prevalent than ever before, we will all have to heed the message that is so clearly and persuasively being put forward in these essay, and by then it will probably be too late. I only hope we can all wake-up sooner, rather than later, for the sake of all beings alive today, and for all those to come.