Arnold Schwarzenegger downplayed the Trump administration’s climate skepticism Tuesday and threw his weight behind the Vatican’s environmental initiative, saying individual choice, local regulations and the Catholic Church's moral leadership were far more important to “terminate” global warming. Schwarzenegger was at the Vatican to headline a three-day climate conference marking the 10th anniversary of Pope Francis’ landmark 2015 environmental encyclical, Laudato Si (Praised Be). The document, one of Francis' main legacies, cast saving God’s creation as an urgent moral imperative and launched a broad, grassroots movement that Pope Leo XIV has fully embraced and made his own. Schwarzenegger, the former Republican governor of California, has devoted time to environmental causes since leaving political office in 2011. His Schwarzenegger Climate Initiative is one of the backers of the Vatican conference, which is being held at the Holy See’s newly inaugurated environmental educational center in Castel Gandolfo south of Rome.