Recent research led by environmental fellow Anna Lea Albright at Harvard University highlights heavy rainfall as a significant threat to cocoa production, overshadowing the commonly emphasized risks of heat and drought. This insight underscores the impact of erratic weather patterns on cocoa cultivation.
The surge in cocoa prices, currently at around $6,000 US per tonne, has been attributed to various factors, including extreme flooding in West Africa. This spike, which saw prices exceeding $12,000 US in 2024, has disrupted the cocoa market, affecting both consumers and farmers in the region.
Leslie Agyare, the founder of Three Mountains Cocoa in Ghana, expressed the challenges faced by farmers due to excessive rainfall hindering harvesting efforts. The study, focusing on Ghana as the world’s second-largest cocoa producer, revealed that intense rainfall during flowering stages significantly impacts cocoa yields more than temperature fluctuations.
The association between heavy rainfall and reduced cocoa yields extends beyond Ghana, affecting cocoa-producing countries like Ecuador and Indonesia. The study also highlights the escalating impact of climate change on cocoa production, with warmer air holding more moisture, leading to more intense rainfall events during the wet season.
While acknowledging the climate challenges, experts emphasize the need for interventions to mitigate the adverse effects on cocoa farming. Suggestions include implementing fungicide treatments and improving drainage systems to combat fungal diseases exacerbated by heavy rains. Additionally, investing in infrastructure and exploring alternative processing methods could help alleviate the burden on cocoa farmers.
The study also underscores non-climactic risks such as aging trees and illegal mining as additional threats to cocoa production. Experts warn that the changing climate may render cocoa farming unsustainable in West Africa, potentially prompting a shift towards alternative chocolate sources to ensure a more resilient supply chain.
In response to these challenges, major players in the industry, like Nestlé, are exploring cocoa-free chocolate alternatives to reduce dependency on cocoa and address supply chain vulnerabilities. This shift towards innovation aims to offer a sustainable solution amid the escalating pressures faced by cocoa farmers in the region.