Forty years is not a long time in Church history. Indeed, we are still living in the moment of Humanae Vitae (issued on July 25, 1968), and of the challenge it presents to the world. Humanae Vitae ...

See our Citation Policies for more details about how to structure your data citation. The Circum-Arctic permafrost and ground ice map is available via ftp in ESRI Shapefile format and Equal-Area ...