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Climate change threatens future of banana industry
Exporters could face 60% drop in growing area due to warming
Climate change is rapidly reducing the ability of banana producers to supply one of our favourite fruits, according to a new study.
The research, published in Nature Food, was led by the University of Exeter using remote sensing algorithms developed by Rothamsted’s Dr Varun Varma. The results suggest that it will be economically unsustainable by 2080 for many areas across Latin America and the Caribbean to continue growing bananas for export, because of rising temperatures caused by climate change.
Bananas are a key export crop worth $11 billion (£8.9 billion) annually and are crucial for the economies of many countries. Yet in just over half a century, 60 per cent of the regions currently producing bananas will struggle to grow the fruit unless there are urgent interventions to tackle climate change.
The study also found that socioeconomic factors, such as labour availability and infrastructure, significantly constrain climate change adaptation. Most banana production occurs near densely populated areas and ports, limiting the potential for relocation to more suitable regions.
Professor Dan Bebber from the University of Exeter led the study and said: “Our findings are a stark reminder that climate change is not just an environmental issue but a direct threat to global food security and livelihoods. Without substantial investment in adaptation, including irrigation and heat-tolerant banana varieties, the future of export banana production looks uncertain.
“Bananas are one of the world’s most important fruits, not only for consumers but for millions of workers in producing countries. It’s crucial we act now to safeguard the industry against the dual threats of climate change and emerging diseases.”
The researchers developed a new method using satellite imagery to map banana production in Latin America and the Caribbean at very high resolution and then estimated the climate under which bananas are preferentially grown.
“Our findings showed climate change will reduce the best areas for banana growth and yields in many important producer countries, as well as increasing worker exposure to extreme temperatures,” said Dr Varma.
Countries such as Colombia and Costa Rica will be the most negatively impacted as they are expected to become too hot for optimal cultivation. Ecuador and parts of Brazil are among the few areas to remain as important producers, as climate change is projected to be less severe there.
The researchers propose several adaptation strategies, including expanding irrigation infrastructure, breeding heat- and drought-tolerant banana varieties, and supporting banana producers to manage climate risks.
Publication
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The Long-Term Experiments,
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BBSRC invests to push back the frontiers of biology and deliver a healthy, prosperous and sustainable future. Through our investments, we build and support a vibrant,
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The Lawes Agricultural Trust, established in 1889 by Sir John Bennet Lawes, supports Rothamsted Research’s national and international agricultural science through the provision of land, facilities and funding. LAT, a charitable trust, owns the estates at Harpenden and Broom's Barn, including many of the buildings used by Rothamsted Research. LAT provides an annual research grant to the Director, accommodation for nearly 200 people, and support for fellowships for young scientists from developing countries. LAT also makes capital grants to help modernise facilities at Rothamsted, or invests in new buildings.