Overview

• The latest findings project a 40% reduction in global GDP per person by 2100 under 4°C warming, up from earlier estimates of 11%.
• Even with a 2°C warming scenario, global GDP per person is expected to decline by 16%, significantly higher than previous projections.
• The study highlights cascading supply chain disruptions caused by extreme weather as a critical factor overlooked in earlier economic models.
• Researchers emphasize that no country is immune to climate change impacts, as global economic interdependence exacerbates vulnerabilities.
• The study calls for retooling economic models to better account for real-world climate risks and supports limiting warming to 1.7°C to avoid catastrophic economic losses.