From October 1–3, 2025, Castel Gandolfo in Lazio, Italy, will host the international conference “Raising Hope for Climate Justice”, a historic gathering to mark the 10th anniversary of the Laudato Si’ encyclical and to foster a global response to the climate and ecological crisis from the perspectives of faith, politics, and civil society.
The event will feature His Holiness Pope Leo XIV, alongside prominent leaders such as Brazil’s Environment Minister Marina Silva, former California Governor Arnold Schwarzenegger, Dr Maina Talia, Minister for Home Affairs, Climate Change and Environment for Tuvalu, Fossil Fuel Non-Proliferation Treaty Initiative President, Kumi Naidoo, along with bishops, international agency officials, indigenous leaders, climate and biodiversity experts, and civil society representatives.
Over three days, the conference will include keynotes, panel discussions, spiritual moments, and cultural events that highlight both the progress made since Laudato Si’ and the urgent steps needed ahead of COP30 in Brazil.
Kumi Naidoo, President, Fossil Fuel Non-Proliferation Treaty Initiative, said: “Faith communities have long underscored the moral duty of humanity to care for creation. Today, science and the courts echo the same sentiments, that we cannot keep fuelling the climate crisis and destroying our common home.
“This conference is a chance for us to reflect together with faith leaders, communities and diverse participants on how we can confront this crisis. It’s an opportunity to lift our voices for climate justice, push for a fast and fair transition from fossil fuels and build momentum for bold global solutions, such as the proposal for a Fossil Fuel Non-Proliferation Treaty.”
The event will be held in person at Castel Gandolfo and streamed live, enabling thousands of people and media outlets worldwide to follow the main messages and join the global conversation.