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Pope Leo XIV on Friday warned against the use of AI to fan "polarisation, conflict, fear and violence" and criticised the "environmental devastation" caused by the extraction of rare earths to fuel the digital boom.
"The challenge posed by these systems is greater than it appears: it is not just about the use of new technologies, but about the gradual replacement of reality by its simulation," he said in a speech at the Catholic University of Central Africa in Yaounde, Cameroon.
"In this way, polarisation, conflict, fear and violence spread. What is at stake is not merely the risk of error, but a transformation in our very relationship with truth."
It marks the pontiff's latest outspoken intervention on a landmark 11-day tour of Africa that has seen him abandon his previous restraint to deliver impassioned pleas for world peace -- and tussle with fellow American Donald Trump, after the US president lashed out at him for calling for an end to the war in the Middle East.
While Leo has called for caution on AI several times since his election in May 2025, his latest warning about the technology comes as the US president faces increasing scrutiny over his use of AI.
Pope Leo XIV (L) receives a gift as he meets with university students and professors at the Catholic University of Central Africa in Yaounde on the fifth day of an 11-day apostolic journey to Africa, on April 17, 2026. (Photo by Alberto PIZZOLI / AFP)