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In reply to the discussion: Pope Francis Expected To Instruct One Billion Catholics To Act On Climate Change [View all]Posteritatis
(18,807 posts)Most Protestants would have some opinions on treating the whole spectrum as one denomination, considering that lumps Unitarians and Calvinists under the same tent.
Regarding your comments above about the birth rates in South American countries, those currently aren't far off from the US. American birthrates have been (mostly) consistent since the late sixties, and those of countries like Argentina have fallen towards the general neighbourhood since then. The United States' birthrate is about 1.9 children per woman to Argentina's 2.2, so both are below replacement level.
The only way countries with those sorts of birthrates can have increases in population is through immigration. Well, either that or annexing other countries or actually having immortals among the elderly, but I haven't seen much of either of those lately.
Incidentally, Italy - Italy! - had a TF of 1.5 children per woman in 2012.
(Gapminder's an absolutely terrific site for looking at data like this objectively. Everyone with a computer should waste a half hour or so there sometime.)