Climate disasters displaced 250 million people in past decade: UN report

A new United Nations report has found that climate disasters displaced 250 million people over the past ten years. The staggering figure underscores the accelerating toll of extreme weather events on human populations worldwide. Published on Monday, the report draws on data from multiple UN agencies and international relief organisations.

The scale of climate displacement

The report documents that floods, storms, wildfires, and droughts forced an average of 25 million people from their homes each year between 2015 and 2025. This marks a sharp increase compared to previous decades. South Asia, Southeast Asia, and sub-Saharan Africa recorded the highest numbers of displacements.

India alone accounted for millions of such movements, particularly during the monsoon seasons when floods and cyclones inundated large areas. The report notes that many of those displaced never returned home permanently, becoming long-term climate migrants.

Who is most affected

Developing nations bear the brunt of this crisis. The report highlights that countries with limited infrastructure and low adaptive capacity suffer the most. In many cases, displacement compounds existing vulnerabilities such as poverty, food insecurity, and political instability.

Women and children make up a significant portion of those displaced. The UN report stresses that these groups face heightened risks of exploitation, violence, and health crises during and after displacement events. The lack of formal legal protections for climate migrants remains a pressing concern.

Extreme weather trends

The report links the rise in displacement to a clear trend: extreme weather events are becoming more frequent and intense. The last decade saw record-breaking heatwaves, catastrophic floods in Pakistan and Bangladesh, and unprecedented wildfire seasons in North America and Australia.

Scientists have long warned that rising global temperatures would fuel such extremes. The UN data now provides concrete evidence of the human cost. The report notes that even if global warming is capped at 1.5 degrees Celsius above pre-industrial levels, displacement numbers are likely to stay high for decades.

Call for action

The UN is urging governments to treat climate displacement as a core policy priority. The report recommends investing in early warning systems, building resilient infrastructure, and creating legal pathways for climate migrants. It also calls for increased funding for adaptation in vulnerable countries.

Without decisive action, the report warns, the numbers will only grow. The next decade could see even larger waves of displacement as climate impacts intensify. International cooperation, the UN stresses, is not optional—it is essential.

Looking ahead, the focus now shifts to the upcoming COP30 summit, where climate finance and displacement are expected to be key agenda items. Whether nations will translate these grim findings into binding commitments remains to be seen.