Population growth rarely comes up in mainstream conversations about environmental protection, which tend to center on emissions targets, renewable energy, or corporate accountability instead. Colcom Foundation‘s resource materials argue that this omission leaves out half the story behind ongoing habitat loss across the country. The foundation’s stated mission centers on fostering a sustainable environment by addressing the causes and consequences of overpopulation, working from the premise that no amount of efficiency improvement can offset unlimited growth in the number of people consuming resources over time.

Two Variables, Not One

That argument rests on the I = P x A x T framework developed by Paul Ehrlich and John Holdren in 1971, which treats total environmental impact as a function of population size, per capita consumption, and technology combined into a single measure. Colcom Foundation applies this framework to argue that policy conversations focused solely on the affluence and technology variables, cleaner cars, more efficient appliances, renewable power, will keep running into the same wall population growth eating into the gains those improvements produce over time. Research from Biological Conservation, published in 2022 by Cafaro and colleagues, found that a decrease in population size directly facilitates ecological restoration, a conclusion Colcom Foundation treats as central to its grantmaking philosophy going forward.

Colcom Foundation’s response is to fund both sides of the equation, supporting land conservation and habitat restoration that shrink the effects of current population pressure while also funding public education about population’s long term role in environmental decline. The foundation positions this dual approach as a corrective to conservation strategies that focus only on consumption habits or technological fixes, arguing that lasting protection for forests, streams, and wildlife habitat requires confronting population trends directly rather than working around them indefinitely into the future decades. Colcom Foundation presents this position as a matter of arithmetic rather than ideology, noting that per capita gains cannot outrun a growing denominator forever without some combination of slower population growth and permanently protected land. Refer to this article for related information.

Find more information about Colcom Foundation on https://www.colcomfdn.org/