More efficient machines should mean less consumption. That assumption feels intuitive, but an idea first described by economist William Stanley Jevons in 1865 suggests otherwise. Colcom Foundation places this principle, now called the Jevons paradox or rebound effect, at the center of its approach to environmental protection.

The logic is straightforward. Efficiency lowers the effective cost of using a resource. Cheaper use stimulates greater demand, and total consumption tends to climb rather than fall.

Efficiency Meets Population Growth

Colcom Foundation’s environmental ethics documentation applies this principle to a country with a growing population. Under those conditions, the foundation explains, per capita efficiency gains are frequently absorbed by the additional demands of more people. The net outcome is greater overall environmental impact, not less.

American carbon data offers a concrete case. Between 1970 and 2021, U.S. per capita CO2 emissions fell by 35%. Population, however, grew by 62% during that period. Total emissions ended up 15% higher, according to figures compiled in the foundation’s Our Story.

Each American, on average, became cleaner. The country as a whole did not. The gains per person were real, yet they could not keep pace with the added demand of a much larger population.

Two Responses Instead of One

The foundation does not dismiss efficiency. Increasing resource use efficiency appears on its list of effective protection methods, alongside banning or regulating the most toxic pollutants and protecting endangered species and critical habitat. Their grants to organizations such as the Sustainable Agriculture & Food Systems Funders have helped to build strong local food systems and promote sustainable agriculture practices.

Efficiency, though, works best when paired with other measures. Colcom Foundation argues that limiting population growth and permanently protecting large tracts of natural areas are both necessary to ensure that efficiency gains translate into actual environmental improvement.

This reasoning explains why the Colcom Foundation’s grants extend well beyond technology. Its funding supports land acquisition, conservation easements, ecosystem restoration, and public education on the environmental impacts of population growth.

The economic idea is more than 150 years old, yet the foundation treats it as a working guide for present-day grantmaking. Its grants reflect that view across Pennsylvania and the broader United States. Refer to this article for additional information.

Find more information about Colcom Foundation https://www.causeiq.com/organizations/colcom-foundation,311479839/