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KINGSTON, Jamaica, Jan 08 (IPS) - Climate change is one of the most serious global threats to the future of the world’s population. Its impact extends far and wide, from the economy to governance to the very health and well-being of society.
The World Health Organization (WHO) estimates that between 2030 and 2050, some 250,000 extra deaths per year will occur because of the climate crisis’ impacts on nutrition and health. Extreme weather events directly affect food and water security and quality of life, resulting in an increase in malaria, diarrhoeal diseases, respiratory illnesses, and heat stroke, among other illnesses and stressors.
And they will reach every country, city, and municipality, in every corner of the world — but some areas are more vulnerable than others. Some of the most vulnerable? Small Island Developing States (SIDS).
https://www.un.org/ohrlls/content/list-sids
SIDS health systems are rarely built or have the resources to withstand the ever-growing, ever-changing impacts of the climate crisis. In the Caribbean Islands, for example, drought and excess rainfall have caused outbreaks of diseases transmitted by insect vectors. Dengue Fever — perhaps the most well known — has surged in recent years, nearly reaching 57,000 in 2024, a 469% increase over the same period in 2023.
The surge was likely fueled by El Niño and unplanned urban growth. The Caribbean Public Health Agency (CARPHA) has also reported increased hospitalisations and deaths due to Dengue and other vector-borne diseases like Zika and Chikungunya.
Beyond vector-borne diseases, climate change also affects non-communicable diseases (NCDs) and other health-related issues. Trinidad, a Caribbean island, saw increased hospital admissions for asthma due to high temperatures, and Belize, a country in Central America, reported that increased heat resulting from climate change is impacting schoolchildren and other vulnerable persons.
In the Pacific Island Countries and Territories (PICT), overall population health status has also deteriorated with increasing climate change-induced health risks. According to an internal report, surveys carried out by Fiji National University note that increased rainfall and flooding have caused crop insecurity, leading to changes in diet and water-borne illnesses.
The frequency of extreme weather events in SIDS is not expected to slow down. Major hurricanes in the Caribbean are projected to increase, and tropical cyclones are expected to carry more and more rain.
The first Category 5 hurricane, “Beryl”— the highest category on the Saffir–Simpson Hurricane Wind Scale — of 2024 was uncharacteristically early, badly damaging Saint Vincent and the Grenadines, Grenada, and parts of Jamaica. Beryl’s destruction is telling of future weather patterns and of small island nations’ vulnerability.
As this haunting trend progresses, climate experts, policymakers, and the global community are gathering the research to establish innovative and necessary solutions. The University of the West Indies (UWI) in the Caribbean, for example, is collaborating with other SIDS researchers to understand the impacts of climate on health which is demonstrated in the 2024 Small Island Developing States report of the Lancet Countdown on Health and Climate Change.
The report notes that addressing heat through adaptation efforts would be an extremely effective and life-saving intervention in SIDS. Establishing more urban green spaces, for example, can provide local cooling benefits and alleviate heat exposure in cities.
Furthermore, UWI and Fiji National University recently presented new research on the impacts of climate change on community health and wellbeing at the Commonwealth Heads of Government Meeting in Samoa.
And at the COP29 in Azerbaijan, participants developed a Special Report on Climate Change and Health, outlining priority recommendations from the global health community for governments, policymakers, and other sectors to place health at the heart of climate solutions.
Yet, for SIDS to truly adapt or combat the effects of climate change, increased access to financing is also crucial.
The research is evident and the urgency has been established. For SIDS, adhering to these recommendations and other global commitments is vital. The health impacts of climate change will continue to persist unless the necessary actions are taken.
Dr. David Smith is a Coordinator of the Institute for Sustainable Development at the University of the West Indies and Chair of the SDSN Caribbean Network. Neisha Manickchand is a Project and Resource Mobilisation Officer for the Institute for Sustainable Development at the University of the West Indies and Network Manager of the SDSN Caribbean Network.
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