In an unusual scientific endeavor, soil ecologist Franz Bender led a project in 2021 that involved 1,000 citizen scientists burying and later excavating their underwear across Switzerland. The objective was to gain insights into soil health and composition. The initiative garnered attention and humor, earning an Ig Nobel Prize in September 2026 for its unique approach.
The experiment revealed intriguing findings as the buried underwear underwent significant decomposition by underground microbes. Bender expressed that this experience was eye-opening for many participants, highlighting the vibrancy and vitality of the soil ecosystem that often goes unnoticed.
Rooted in a similar initiative in Canada, where the Innovative Farmers Association of Ontario pioneered the “Soil Your Undies” campaign, the project aimed to raise awareness about soil health and the importance of preserving this vital resource. The unconventional method of burying underwear resonated with a diverse range of participants, including senators, university deans, and even schoolchildren, fostering a fun and engaging way to engage with soil science.
Expanding on the Canadian concept, Bender and his team orchestrated a large-scale citizen science project in Switzerland, involving over 1,000 volunteers. The participants were provided with organic cotton underwear, accompanied by detailed instructions on burying them at specific depths and locations. Additionally, a smartphone app was developed to collect additional data and feedback from the contributors.
Through the experiment, it was observed that the decomposition of the underwear varied based on the type of soil environment, with private gardens exhibiting the most significant degradation due to favorable nutrient-rich conditions. Contrarily, lawns showed less microbial activity, resulting in slower decomposition rates. The study highlighted the importance of soil conditions in fostering biological activity and decomposition processes.
While the project brought attention to soil science through its unconventional approach, experts like Asim Biswas from the University of Guelph emphasized the significance of further research on soil health and biodiversity. The study’s success in generating global media coverage underscores the potential of innovative methods to advocate for soil conservation and awareness.
The “Soil Your Undies” campaign continues to gain momentum, with professionals like Joann Whalen from McGill University endorsing the simplicity and cost-effectiveness of visual soil tests using buried underwear. The experiment not only serves as a creative means to evaluate soil health but also sparks interest and engagement in environmental conservation efforts.
In a creative twist, Bender and his team collaborated with a fashion designer to repurpose the excavated underwear into fashionable garments, highlighting the project’s unique blend of science and creativity.
Overall, the groundbreaking study showcases the potential of citizen science initiatives in advancing environmental research and promoting public awareness of soil conservation and sustainability practices.