Pope Francis has urged Catholics to welcome the encyclical on the environment which is due out tomorrow. During his weekly general audience in St Peter's Square today, Pope Francis said: "Tomorrow, as you know, the encyclical on the care of the ‘common home’ that is creation will be published. This 'common home' is being ruined and therefore hurts everyone, especially the most poor." He continued: "Therefore, I would like to launch an appeal to responsibility, based on the task which God gave to man in creation: ‘to cultivate and protect’ the ‘garden’ in which humanity has been placed. I invite all to welcome with an an open spirit this document, which places itself in the line of the Church's social doctrine." The encyclical’s name — Laudato Si (Praised Be To You) — is taken from St Francis’ Canticle of the Sun, a hymn of praise for God's creation, written in 1224. Laudato Si will be officially released at a press conference in the Vatican’s synod hall tomorrow.