https://www.sis-group.org.uk/news/2021/11/21/global-environmental-crisis-42000-years-ago/
Global Environmental Crisis 42000 years ago - Society for Interdisciplinary Studies
Nov 21, 2021 - At www.researchgate.net/publication/349448597_A_global_environmental_crisis... ... geological archives are said to record multiple episodes of reversals of
global environmental crisisyears agosocietyinterdisciplinarystudies