Europe faces €800 billion economic drain from extreme heat

The economic toll stems from a sharp decline in productivity within agriculture and construction, sectors where work slows or halts once temperatures cross the 30°C threshold. While floods and storms often garner more immediate attention, heat acts as a silent, structural hazard. Allianz SE estimates that France alone faces €211 billion in output risk through 2030, a figure driven by the sheer scale of its economic exposure. Italy, Germany, and Spain follow in the ranking, with projected losses of €147 billion, €131 billion, and €120 billion respectively.

Agricultural yields are already signaling the scale of this disruption. In the Iberian Peninsula, olive production—which accounts for over half of the global supply—could drop by 28 percent due to heat-sensitive flowering periods. Experts from the European Environment Agency note that while these fiscal impacts are severe, they are exacerbated by the fact that these specific Mediterranean-facing economies currently possess the least capacity to absorb such systemic shocks. As heatwaves become more frequent, the continent faces an urgent need for massive adaptation investment to protect its core industrial and agricultural output.