Environmental protection rarely comes down to a single fix. Colcom Foundation supports a multi-part approach built on five methods, each targeting a different source of ecological harm.
Addressing Size and Consumption
The first method is limiting population growth. The foundation’s reasoning draws on the I = P × A × T framework, developed by Paul Ehrlich and John Holdren in 1971, which treats total environmental impact as the product of population, per capita affluence, and technology. Cafaro et al. (2022), in Biological Conservation, concluded that population decrease directly facilitates ecological restoration.
The second is increasing resource use efficiency. Colcom Foundation supports efficiency while warning about its limits. The Jevons paradox holds that efficiency gains can raise total consumption by lowering costs. U.S. data illustrates the effect: per capita CO2 emissions dropped 35% from 1970 to 2021, but population grew 62% and total emissions rose 15%. Colcom Foundation’s environmental ethics documentation identifies this pattern as the rebound effect.
Protecting Land, Species, and Ecosystems
Third on the list is banning or regulating the most toxic pollutants. Waste released faster than natural systems can process it is one of the two primary mechanisms of degradation the foundation identifies. The other is extracting resources faster than ecosystems can regenerate them.
Fourth, the foundation supports placing land under permanent conservation. Conservation easements, voluntary agreements that permanently limit specified land uses, are one tool for this. Across western Pennsylvania, Colcom Foundation favors projects that create large, contiguous tracts of protected land.
The fifth method is protecting endangered species and critical habitat. The 2019 IPBES Global Assessment found that approximately 1 million plant and animal species face extinction. Habitat protection helps keep those species from disappearing.
These five methods work as a set. Efficiency without land protection may simply enable more consumption. Land protection without attention to population may be outpaced by demand. The foundation argues that limiting population growth and permanently protecting large natural areas are both necessary for efficiency gains to produce real environmental improvement. Read this article for related information.
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