Nearly 650 people gathered at Sara Kulturhus in Skellefteå when scientist Johan Rockström and artist, NatGeo Explorer, photographer and filmmaker Mattias Klum took the stage during Society Expo 2026.

Mattias Klum is participating in the Fifth Villars Symposium, taking place from 14–17 June 2026 at the Villars Palace Hotel in Villars-sur-Ollon, Switzerland.