Overview

• The Holy See’s “Raising Hope for Climate Justice” conference runs Oct. 1–3 at Castel Gandolfo to mark the 10th anniversary of Laudato Si’, with Pope Leo XIV scheduled to speak.
• Organizers say the event will launch a “Laudato Si’ 10” pledge and culminate in commitments intended to be delivered to COP30 in Belém, Brazil.
• Arnold Schwarzenegger endorsed the initiative at a Vatican briefing, urging local and individual action and saying the Church’s 1.4 billion members can help “terminate” pollution.
• Speakers include Brazil’s environment minister, the U.N. Faith for Earth director and the European Climate Foundation CEO, with Tuvalu’s climate minister warning his nation is already facing rising seas.
• The Vatican highlighted recent steps such as opening an ecological training center at Castel Gandolfo and its plan to make Vatican City a zero‑emission state by 2050.