Arnold Schwarzenegger calls to phase out fossil fuels as he joined the Vatican’s climate initiative on Tuesday, urging political and faith leaders to step up action against global warming. The former California governor and actor spoke at the Vatican ahead of a three-day climate meeting, aligning himself with Pope Leo’s campaign to accelerate the transition to clean energy.

A Message Framed in Faith and Morality

Schwarzenegger, a lifelong Catholic, said the world’s 1.4 billion Catholics could become “crusaders for the environment.” Drawing on his famous Terminator persona, he urged leaders to help “terminate pollution” and emphasized a moral duty: “God has put us in this world to leave this world a better place than we inherited it.”

The actor-turned-politician noted his long record of climate advocacy, including policies enacted during his time as California governor, when he championed renewable energy and emission-reduction programs.

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The Vatican’s Climate Push

The gathering at the Vatican coincides with the 10th anniversary of Pope Francis’s encyclical on the environment, Laudato Si’, a document that framed climate change as both a moral and ecological crisis. Pope Leo, the first U.S.-born pontiff, is now building on that legacy. Earlier this month, he inaugurated an ecological training center in Castel Gandolfo, designed to educate clergy and lay leaders on environmental stewardship.

The three-day meeting brings together scientists, activists, and policymakers. Discussions focus on strategies to cut greenhouse gas emissions and reduce reliance on fossil fuels, with an emphasis on how faith communities can play a role in mobilizing public support.

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Voices from the Frontlines

One of the speakers, Maina Talia, the climate minister of Tuvalu, highlighted the existential threat small island nations face from rising seas. “Climate change is not a distant scenario … we are drowning,” he told the Vatican gathering. His testimony underscored the urgency of global cooperation and added a human dimension to the policy debates.

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Arnold Schwarzenegger Calls to Phase Out Fossil Fuels: A Signal to World Leaders

While the Vatican meeting did not produce new binding agreements, it reinforced the role of faith and moral leadership in the climate movement. By combining Schwarzenegger’s star power with Pope Leo’s moral authority, the event amplified the call to move beyond fossil fuels and accelerate the clean energy transition.

The message was clear: ending dependence on fossil fuels is not just a policy goal but a shared moral responsibility.

Key Takeaways from the Vatican Climate Event