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As we cross 1.5°C of heating: “Globally, heat exposure caused the loss of 573 billion potential work hours in 2025, resulting in US$1·07 trillion in income losses.” - 5·0% loss of gross domestic product (GDP) for low Human Development Index (HDI) countries… www.thelancet.com/jo... 1/3

- 3·7% of GDP for medium HDI countries - 1·4% of GDP for high HDI countries and - 0·5% of GDP for very high HDI countries 2/3

Global heating is much worse than just ‘lost work hours’, per se. In many places, it’s too hot to grow crops, it doesn’t cool down in evenings for respite. In other words, it’s too hot to survive.