In May, 2015, Pope Francis issued his long-awaited environmental encyclical, Laudato Si. Titled with the opening line of St. Francis' famous canticle, translated "blessed be," the document is an examination of the social and environmental challenges facing the human family and an invitation to a profound cultural transformation.
Laudato Si can be read online and downloaded here. Physical copies are available through MEEC (email firstname.lastname@example.org) or through your local bookstore. The Vatican's video version of the encyclical can be viewed here.