Big cost of climate change on Jamaica

Jamaica faces an existential threat to its economic foundation and developmental trajectory as climate change evolves from an environmental concern into a paramount national security issue. Professor Michael Taylor, a leading climate scientist at The University of the West Indies, Mona, delivered a stark warning that the nation’s partial resilience measures equate to no resilience at all in the face of cascading climate impacts.

The interconnected nature of Jamaica’s infrastructure means that failure in one sector could trigger catastrophic breakdowns across the entire economy. Professor Taylor revealed that a single major climate event could wipe out 30-40% of Jamaica’s GDP—not through obvious weaknesses already addressed, but through overlooked downstream sectors that could become ignition points for widespread devastation.

The evidence is already apparent. Hurricane Melissa inflicted unprecedented losses of $1.3 trillion, equivalent to 41% of GDP, dwarfing the damage from Hurricane Ivan in 2004 (6.8% of GDP). What makes the current situation particularly dire is the accelerating frequency of extreme weather events, leaving insufficient recovery time between disasters.

Beyond dramatic hurricanes, Jamaica struggles to quantify slower climate threats, including record-breaking heat waves and sea-level rise. The scientific tools to measure these gradual but damaging effects remain underdeveloped, creating critical data gaps that hinder effective policy formulation.

In response, Jamaican institutions are developing innovative solutions like the Jamaica Systemic Risk Assessment Tool (J-SRAT), which aims to comprehensively assess risks across sectors. Researchers are also working to quantify the value of ecosystem services and nature-based solutions that could prevent future losses.

The economic implications are already materializing. Minister Matthew Samuda warned that climate risk is reshaping Jamaica’s physical and financial landscape, with insurance premiums rising beyond affordability in vulnerable coastal areas. Some regions are becoming effectively uninsurable and unlivable, directly constraining investment, housing development, and national growth.

The consensus is clear: Jamaica must develop context-specific solutions rather than importing foreign approaches. Addressing this crisis requires coordinated action from academia, government, and the private sector to transform climate resilience from an environmental concern into a core development priority.