Laudato if: is the title of the first ecological encyclical, published in 2015 by our Pope Bergoglio. Take subtitle: on the care of the common house. Focuses on the problems of the planet Earth: consumerism, energy development, climate change... The title of the papal encyclicals usually consist of the first words of the text, as in this case in which remembers the Canticle of the creatures of St. Francis of Assisi in the 13th century, thus starting in the Umbrian dialect: laudato if '' mi '' Signore: praise you are, my Lord. If it were in latin, as it tends to be, should say: laudatus sis.