Robert McKim is emeritus professor of religion at the University of Illinois and editor of Laudato Si' and the Environment: Pope Francis' Green Encyclical.

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Commentary

Five years on: Exploring four puzzles in Laudato Si'

Commentary: Pope Francis packed a great deal of clear advice into his climate encyclical, challenging as it may be to put that advice into action. But there are also questions to ponder as we dig more deeply.