Pope Leo XIV sent a video message to the 10th Austrian World Summit in Vienna on June 16, 2026, telling participants that the “religious dimension is in fact essential” to addressing climate change and environmental protection. The summit, hosted by Arnold Schwarzenegger at the Hofburg Palace under the theme “We Are Unstoppable”, marked the 10th anniversary of the Austrian World Summit.
The Pontiff, the first American to hold the See of Peter, addressed an audience that included former US vice president Kamala Harris, Austrian President Alexander Van der Bellen and representatives from politics, business and civil society. He urged believers of all traditions to view care for creation as a “requirement of their faith” and a “vocation to be protectors of God’s handiwork”.
