By Robert Albro
Associate Director, CLALS
April 8, 2025
Migrants use a dam to cross into the US in Texas on Saturday. By Free Malaysia Today
Recent devastating fires in Hawaii, the Pacific Northwest, and Los Angeles, similarly catastrophic floods in Kentucky and severe hurricane damage in North Carolina, have brought home to people in the U.S. that natural disasters made worse by climate change are more frequently displacing a growing number of people around the world. An estimated 220 million people have been displaced by weather-related disasters over the previous decade, which amounts to approximately 60,000 per day. That number is expected to grow.
Over that same period an estimated 7.7 million people in Latin America and the Caribbean have been displaced due to disasters, with climate change an increasing contributor. In recent years the region has been repeatedly devastated by hurricanes, as well as floods and wildfires, all of which have become larger, more frequent, and damaging as a result of climate change.
In 2017 hurricanes Maria and Irma pummeled the Caribbean. Maria wrought long-lasting damage, leaving Puerto Rico without power for almost a year, with an estimated 130,000 people leaving the island in the storm’s aftermath to resettle in Florida and elsewhere. Irma followed soon thereafter, displacing a total of 1.7 million in 15 countries and territories, making it the largest global disaster event that year. In 2019 Dorian, the strongest recorded hurricane ever to hit the Bahamas, left at least 70,000 homeless. In 2024 Beryl tore through large parts of the Caribbean and Yucatan Peninsula, displacing an estimated 200,000 while damaging or destroying 90 percent of homes and buildings.
Massive flooding events are also now more common in Latin America. A result of the El Niño-la Niña oscillation, climate change has made such floods twice as likely. Brazil alone has been the scene of recurring annual flooding. In 2022 torrential rains caused the worst floods on record leading to nearly 700,000 displaced Brazilians. Again in 2024 a period of intense rainfall during April and May produced the worst floods to hit Brazil in over 80 years, displacing over 600,000. Many of these were migrants from other countries living in Brazil.
Wildfires are also becoming an increasingly familiar annual occurrence, particularly in South America. Since the 1970s the number of days per year with conditions of high fire risk have quadrupled in some parts of South America. Over the past decade the average annual number of wildfires has steadily risen, and 2024 saw the highest recorded number of fire hotspots ever in South America. Below-average rainfall in many areas, together with higher temperatures, and prolonged draughts, aggravated by logging and deforestation, are the main contributors.
In recent years Argentina, Chile, Bolivia, and Brazil have been particularly hard hit. In February 2024 an estimated 40,000 people in Chile’s Valparaíso region were displaced by fire, with 14,000 houses damaged or destroyed. So far in 2025 three large-scale fires in Argentina’s Patagonian region displaced more than 200 families. Finally, Brazil is in the midst of its worst draught since at least the 1950s. And Bolivia and Brazil experienced record numbers of fires in 2024, with thousands displaced.
Taken together, millions of people have been displaced in Latin America and the Caribbean in recent years as a result of climate-exacerbated natural disasters. But these numbers only account for rapid-onset destructive weather events. They do not reflect rising human mobility in response to slower-onset and harder to discern climate impacts and forms of environmental degradation, such as glacial melt, desertification, or sea level rise, which are directly negatively affecting agricultural economies throughout the region and forcing people to move. Addressing the consequences of displacement for these less obvious reasons promises to be among the major humanitarian challenges of the rest of this century.
The great majority of people displaced by environmental upheaval are internal and not international migrants. But particularly smaller and comparatively under-resourced states do not typically have the financial means or capacity to provide ongoing humanitarian assistance to victims of climate-related disasters. Regional entities, such as the Caribbean Disaster Emergency Management Agency (CDEMA), provide much needed resources and expertise, if often insufficient and unsustainable over the long term. International aid groups and multilateral agencies also assist with recovery and resilience efforts, but have been slow to organize and channel adequate resources to address the losses and damages incurred as a result of climate catastrophes. Short sighted U.S. disinvestment in humanitarian aid promises to make this situation considerably worse.
In the aftermath of disaster, understandably an initial priority of states is to mount a recovery effort, which includes stabilizing the economy and rebuilding critical material assets and infrastructure, including housing. But, as I’ve explored in depth elsewhere, intangible forms of non-economic loss are, so far, almost entirely neglected. And yet, as climate-induced displacement becomes widespread, we ignore their significance at our own peril.
Non-economic losses encompass family separations, the fragmentation of community, decline of social cohesion, disruption of cultural identities and relationships to heritage, among others. We should understand the difficulties posed by such losses as comparable to characteristic challenges of many post-conflict societies and failed states, where absent families, the erosion of norms, fractured social structures, and unaddressed grievances, often promote alienation and undermine human security as known factors contributing to the growth of gangs, and new forms of violence, criminality, and social instability. In Latin America, Haiti, Venezuela, El Salvador, and more recently, Ecuador, all serve as sobering reminders of what’s at stake. It’s time that we recognize the risks of ignoring the potentially comparable consequences of non-economic losses from increased climate displacement across the region.
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