Green nuns. Green sisters. Even “eco-nuns.” Throughout America — and indeed, the world — thousands of religious sisters are daily witnessing to the environmental care commitment urged by Pope Francis’ 2015 encyclical, “Laudato Si’,” and its 2023 sequel, “Laudate Deum.” It’s a congregational concern that, for many of them, often predates the pontiff’s writings — but the merging of their own environmental priorities with official papal pronouncements has helpfully amplified sisterly endeavors.
