Colcom Foundation Highlights Severe US Biocapacity Overshoot
Carbon emissions tell only part of the sustainability story, according to research published by Colcom Foundation. The foundation points to biocapacity, a measure of how much land and water a population needs to produce what it consumes and absorb its waste, as a more complete gauge of environmental pressure.
A Deficit That Has Only Grown
By that measure, the United States has been living beyond its means since the first Earth Day. The country consumed 227% of its available biocapacity in 1970, and that figure climbed to roughly 240% by 2020, despite decades of conservation spending and policy effort. Colcom Foundation calculates that all of the increase came from population growth, since per capita biocapacity use actually fell by more than 20% over the same period.
Colcom Foundation extends the analysis to consider what fairness toward other species would require. If 30% of the natural world were set aside for wildlife, in line with the 30×30 conservation target, U.S. biocapacity utilization would have reached about 341% in 2020. Under the more ambitious Half-Earth standard, which reserves half the planet’s land for nonhuman species, the figure would climb to 478%.
Colcom Foundation frames these numbers as evidence that efficiency improvements alone cannot close the gap. Even as Americans reduced their individual footprint, the sheer number of residents kept pushing total consumption further into deficit. The foundation’s research treats this as the central obstacle facing any serious biocapacity target for the coming decades.
The organization also notes that biocapacity deficits translate into real trade-offs, since a nation running a deficit must either import resources from elsewhere, draw down its own ecological reserves, or emit waste faster than the environment can absorb it. Colcom Foundation contends that all three responses have played a role in the U.S. deficit since 1970, and that none of them offers a lasting fix without addressing the population growth driving demand higher each year. Refer to this article for related information.
Find more information about Colcom on https://waterlandlife.org/land-conservation/colcom-revolving-fund-for-local-land-trusts/