If people stopped having babies, how long would it be before humans were all gone?
- Written by Michael A. Little, Distinguished Professor Emeritus of Anthropology, Binghamton University, State University of New York

References
- ^ Curious Kids (theconversation.com)
- ^ CuriousKidsUS@theconversation.com (theconversation.com)
- ^ few people live beyond a century (www.bumc.bu.edu)
- ^ As an anthropology professor (scholar.google.com)
- ^ Kurt Vonnegut explored in his novel “Galapagos (www.penguinrandomhouse.com)
- ^ people of reproductive age infertile (www.cdc.gov)
- ^ a nuclear war that no one survives (bigthink.com)
- ^ explored in many scary movies and books (www.bfi.org.uk)
- ^ The Handmaid’s Tale (www.harpercollins.com)
- ^ The Children of Men (www.penguinrandomhouse.com)
- ^ different kinds of catastrophes (www.imdb.com)
- ^ peak at 10 billion in the 2080s (www.un.org)
- ^ 4 billion in 1974 (theconversation.com)
- ^ U.S. population currently stands at 342 million (www.census.gov)
- ^ down from 4.1 million in 2004 (www.cdc.gov)
- ^ 3.3 million people died in 2022 (www.cdc.gov)
- ^ typical age for retirement (www.ssa.gov)
- ^ India and South Korea (ourworldindata.org)
- ^ cultural and political concerns often stop that (hir.harvard.edu)
- ^ fertility problems (www.ncbi.nlm.nih.gov)
- ^ Homo sapiens (theconversation.com)
- ^ what happened to the Neanderthals (humanorigins.si.edu)
- ^ gradually declined (theconversation.com)
- ^ controlling climate change (theconversation.com)
- ^ wide array of animals and plants (theconversation.com)
- ^ CuriousKidsUS@theconversation.com (theconversation.com)
Authors: Michael A. Little, Distinguished Professor Emeritus of Anthropology, Binghamton University, State University of New York