By Cindy Wooden Catholic News Service 8.10.2015 9:39 AM ET VATICAN CITY (CNS) Like their Orthodox brothers and sisters, Catholics formally will mark Sept. 1 as the World Day of Prayer for the Care of Creation, Pope Francis has decided. The day of prayer, the pope said, will give individuals and communities an opportunity to implore God's help in protecting creation and an opportunity to ask God's forgiveness "for sins committed against the world in which we live."