Pope Leo XIV releases encyclical on AI ethics, addressing interpretability challenges, environmental impact, and risks of algorithmic decision-making without human accountability

Pope Leo XIV published 'Magnifica Humanitas,' an encyclical on safeguarding human dignity in the age of artificial intelligence. The document draws a parallel to Pope Leo XIII's 1891 encyclical 'Rerum novarum' on labor rights, framing current AI development as another industrial revolution requiring the Church's social teaching.

The encyclical highlights that AI systems remain poorly understood: developers 'cultivate' rather than directly design every detail, leaving 'fundamental scientific aspects — such as the internal representations and computational processes of these systems — unknown.' It also warns that AI responses can reflect hidden 'cultural assumptions of those who designed and trained them,' misleading users into false relationships and creating new forms of exclusion when used in employment, credit, and public services decisions.

Pope Leo XIV calls for clear accountability structures 'from those who design and develop these systems to those who use them,' and urges that data 'cannot be left solely in private hands' but must be 'managed as a common or shared good.' The encyclical also notes that current AI systems 'require enormous amounts of energy and water, significantly influencing carbon dioxide emissions.'