As students and staff from Annunciation Catholic School in Washington watch, a worker with Casey Trees plants a tree on the parish grounds on Oct. 4, 2021 as part of the Laudato Trees initiative inspired by Pope Francis’s Laudato Si’ encyclical on the environment and the Laudato Si’ Action Plan of The Roman Catholic Archdiocese of Washington. The tree planting was done on the feast of St. Francis of Assisi, the patron saint of ecology.