October 4 is the Feast of St. Francis of Assisi, patron of ecologists. On that day this month Pope Francis went back to a major theme of his acclaimed 2015 environmental encyclical Laudato Si: On theCare for Our Common Home. In an apostolic exhortation, Laudate Deum (Praise God), the pope spoke to Catholics and the world about climate change, an issue of great concern to him. Francis is not alone among Church leaders in that concern. Previous popes, dating back... Read more