Land use drives decomposition of organic cotton underpants, study shows

A recent study has identified land use as the primary determinant of how quickly organic cotton underwear breaks down in the environment. Researchers from the University of Greenfield’s Department of Environmental Science examined discarded organic cotton underpants across three distinct settings—forest, agricultural, and urban land. By monitoring weight loss, fiber integrity, and microbial activity over a 12‑month period, the team was able to quantify decomposition rates under each land‑use scenario.

The findings revealed that organic cotton underpants decomposed most rapidly in forested areas, where high humidity and diverse microbial communities accelerate fiber breakdown. In agricultural land, decomposition was moderate, while in urban settings the rate was significantly slower due to lower moisture levels and reduced microbial diversity. The study highlights that the surrounding ecosystem’s characteristics—rather than the cotton’s organic certification—play a decisive role in the material’s environmental fate.

These results underscore the importance of considering land‑use impacts when assessing the sustainability of textile waste. They suggest that waste management strategies should be tailored to local environmental conditions to optimize biodegradation and reduce the ecological footprint of discarded clothing.