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‘A gift that falls from the sky’: why farmers are using Etna’s ash as fertiliser
Key Excerpts from Article on Website of The Guardian
Posted: March 28th, 2026
https://www.theguardian.com/environment/2026/feb/26/volcanic...
In the Sicilian town of Giarre overlooking Mount Etna, Andrea Passanisi, a tropical and citrus fruits producer, uses an unusual fertiliser on his 100-hectare (247-acre) stretch of land: volcano ash. Like hundreds of farmers and citizens of rural towns perched on the slopes of Europe’s highest and most active volcano, the 41-year-old’s family has had to deal with the nuisance of falling volcanic ash for generations. But it is only in recent years that the quantity of ash has become so excessive that it required an alternative approach. With every eruption, towns such as Giarre experience an average of 12,000 tonnes of ashfall daily, which the wind can transport as far as 800km (497 miles). In July 2024, Catania – Sicily’s second-largest city, located at the foot of Mount Etna – registered 17,000 tonnes of ash daily, which took nearly 10 weeks to collect. For years, farmers such as Passanisi were led to believe the phenomenon was a danger to crops, polluting irrigation waters and requiring special equipment and days off work to clean up. But a five-year project by the University of Catania raised awareness of the potential for ash to become a resource in the production cycle of many different sectors, including agriculture. “It allows us to use fewer chemicals, which makes fertilising cheaper and more sustainable, respecting the equilibrium of nature without abusing it,” Passanisi says. “It’s the future of agriculture.”
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