UK Researchers Harvest Lettuce 1.1km Underground in 12-Month Mine Farming Trial
Updated
Updated · The Guardian · Aug 22
UK Researchers Harvest Lettuce 1.1km Underground in 12-Month Mine Farming Trial
2 articles · Updated · The Guardian · Aug 22
Summary
More than 1,000 metres below North Yorkshire, researchers harvested pak choi and lettuce from vertical towers at Boulby mine in what they call the world’s deepest underground farm.
The 12-month trial is testing whether disused mines can grow uniform, marketable crops while cutting the high energy costs of conventional vertical farming through stable underground conditions and existing infrastructure.
Mixed early results included oversized lettuce and weaker plants, but project lead Jacob Nickles said the setbacks appear to be engineering problems rather than proof the concept cannot work.
The Sheffield University-Farm Urban project is pitched as a complement to conventional farming as extreme heat and drought hit English crops, with backers arguing mine-based farming could strengthen food security, reuse redundant mines and create jobs.
With past underground farms failing commercially, what hidden advantage does this extreme deep-earth experiment possess?
Could a 1,000-meter deep mine hold the secret to surviving our escalating global food crisis?
Will the massive logistics of hauling harvests from deep underground erase the promised energy savings?
Underground Farming at 1,100 Meters: How the 2026 Boulby Mine Breakthrough Could Cut Vertical Farm Costs by 50% and Revitalize Post-Industrial Communities
Overview
The collapse of major vertical farming companies in 2026 exposed deep flaws in the industry's business model, especially its high energy costs and vulnerability to market shocks. In response, researchers established the world’s deepest underground farm at Boulby mine, using the mine’s stable temperatures and existing infrastructure to cut heating and ventilation costs. This underground approach not only reduces operational expenses by up to 50% but also creates green jobs in economically deprived areas and strengthens food security by insulating crops from extreme weather. By repurposing redundant mines, the project offers a resilient, cost-effective alternative to traditional vertical farming.