Arnold Schwarzenegger and Heather Milligan step out for the Austrian World Summit

The couple made a rare appearance together to support a vital climate initiative

Arnold Schwarzenegger and his longtime partner, Heather Milligan, recently made a rare joint appearance at the Austrian World Summit. The couple stepped out on June 16 to support the Schwarzenegger Climate Initiative, turning heads alongside Vice President Kamala Harris, who attended as the event's international special guest. The former California governor founded the annual summit back in 2017 with a clear mission: to unite political leaders, scientists, business executives, and activists in the fight against climate change.

During the event, the 78-year-old actor and 51-year-old physical therapist were seen sharing moments on stage, including a panel discussion focused on finding practical environmental solutions. The event remains a centerpiece for Schwarzenegger's foundation, which actively advocates for global environmental progress and aims for a future where pollution is completely terminated.