The Measurement Trap: Why Hiding Behind 20-Year Averages Will Turn 1.5°C into a Crime Scene

International courts have declared that passing 1.5°C triggers legal liability—but our insistence on historic averages means we won’t legally recognise the crime until after the damage is irreversible

Tom Harris

Aug 12, 2026 

https://drtomharris.substack.com/p/the-measurement-trap-why-hiding-behind