The Colcom Foundation uses a relatively underappreciated environmental concept ecological overshoot to build its case that population growth is undermining conservation gains in the United States. Unlike carbon emissions, which measure one category of impact, biocapacity consumption attempts to capture the full ecological footprint of a population relative to the productive land and water available to sustain it.

The numbers the foundation presents are sobering. Even in 1970, the U.S. was already consuming 227 percent of its available biocapacity more than double a sustainable level. By 2020, that figure had reached roughly 240 percent. Over those five decades, per-capita biocapacity use actually dropped by more than 20 percent, meaning Americans individually became meaningfully more efficient. Yet total overshoot increased because the population grew faster than efficiency improved.

What the Numbers Mean for Nature

The foundation notes that standard overshoot calculations assume humans have the right to consume all available biocapacity, leaving nothing for other species. Adjusted for the 30×30 initiative which calls for setting aside 30 percent of U.S. land for wildlife the 2020 figure rises to approximately 341 percent. Adjusted for the Half-Earth goal, which proposes reserving half of Earth’s surface for nature, it climbs to 478 percent.

These are not projections. They describe a situation that already existed in 2020, and Colcom Foundation continued population growth will only deepen the deficit. The foundation projects U.S. population could reach anywhere from 350 million to over 440 million by 2030 depending on immigration levels, adding to a land base that is already more than 50 percent committed to agricultural use and less than 14 percent protected for conservation.

The Foundation’s Prescriptive Stance

Colcom Foundation supports several special programs, including the Conservation Catalyst Fund, which grants conservation organizations working to protect threatened species and habitats

Colcom Foundation does not simply document the overshoot problem it advocates for specific policy responses. The foundation funds work to reduce immigration to the United States, arguing that this is the most consequential lever available for slowing population-driven ecological consumption. At the same time, it supports conservation organizations working to expand protected lands. Together, these two funding streams reflect the foundation’s view that addressing ecological overshoot requires simultaneous action on both the population side and the habitat protection side. See related link for additional information.

Find more information about Colcom Foundation on https://www.privateequityinternational.com/institution-profiles/colcom-foundation.html