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Pope Leo XIV Presses for Tougher Climate Rules at Vatican Climate Summit

The Castel Gandolfo gathering pairs a new Laudato Si’ 10 pledge with Vatican steps toward carbon neutrality.

Pope Leo XIV, center, attends the International conference "Raising Hope for Climate Justice", in Castel Gandolfo, Italy, Wednesday, Oct. 1, 2025. (AP Photo/Alessandra Tarantino)
Pope Leo XIV, center, attends the International conference "Raising Hope for Climate Justice", in Castel Gandolfo, Italy, Wednesday, Oct. 1, 2025. (AP Photo/Alessandra Tarantino)
Hollywood actor and former California Governor Arnold Schwarzenegger gestures during a Vatican press conference about climate change in Rome, Italy, September 30, 2025. REUTERS/Remo Casilli
Hollywood actor and former California Governor Arnold Schwarzenegger looks on during a Vatican press conference about climate change in Rome, Italy, September 30, 2025. REUTERS/Remo Casilli

Overview

  • In his first major environmental address, Pope Leo urged citizens, NGOs and advocacy groups to push governments for rigorous regulations, procedures and controls.
  • He rebuked those who deride climate science and framed care for creation as integral to Christian faith, days after President Donald Trump called global warming a con job.
  • Organizers launched a Laudato Si’ 10 pledge to channel commitments into COP30 in Brazil next month and to press for stronger national targets.
  • The Vatican is advancing a large solar farm intended to supply its electricity and make Vatican City the first carbon-neutral state, alongside a new ecological training center at Castel Gandolfo.
  • Arnold Schwarzenegger endorsed the initiative, calling the Church’s 1.4 billion members a force to “terminate pollution” and urging practical local action.