Northern Hemisphere Glaciation, African climate and human evolution. (15th September 2021)
- Record Type:
- Journal Article
- Title:
- Northern Hemisphere Glaciation, African climate and human evolution. (15th September 2021)
- Main Title:
- Northern Hemisphere Glaciation, African climate and human evolution
- Authors:
- Trauth, Martin H.
Asrat, Asfawossen
Berner, Nadine
Bibi, Faysal
Foerster, Verena
Grove, Matt
Kaboth-Bahr, Stefanie
Maslin, Mark A.
Mudelsee, Manfred
Schäbitz, Frank - Abstract:
- Abstract: The hypothesis of a connection between the onset (or intensification) of Northern Hemisphere Glaciation, the stepwise increase in African aridity (and climate variability), and an important mammalian (including hominin) species turnover is a textbook example of the initiation of a scientific idea and its propagation in science. It is, however, also an example of the persistent popularity of a hypothesis despite mounting evidence against it. A critical review of key publications on the topic and statistical re-analysis of key records of global ice volume and African climate leads to three conclusions: (1) The Northern Hemisphere Glaciation was a gradual process occurring between ∼3.5 and 2.5 Ma, not a single event at ∼2.8 Ma or at any other time. (2) A consistent stepwise (+/−0.2 Ma) transition toward greater aridity in Africa at ∼2.8 Ma does not exist; instead, there are regionally different, gradual transitions partly in connection with the intensification of the Northern Hemisphere Glaciation, but above all with the establishment of the tropical Walker Circulation after ∼2 Ma. (3) Mammalian (including hominin) species turnovers at this time also appear to have been gradual, rather than stepwise. Highlights: We falsified the hypothesis of a connection between Northern Hemisphere Glaciation, African climate and human evolution.
- Is Part Of:
- Quaternary science reviews. Volume 268(2021)
- Journal:
- Quaternary science reviews
- Issue:
- Volume 268(2021)
- Issue Display:
- Volume 268, Issue 2021 (2021)
- Year:
- 2021
- Volume:
- 268
- Issue:
- 2021
- Issue Sort Value:
- 2021-0268-2021-0000
- Page Start:
- Page End:
- Publication Date:
- 2021-09-15
- Subjects:
- Onset of the northern hemisphere glaciation -- Paleoclimate dynamics -- Eastern africa -- Human evolution -- Time-series analysis
Geology, Stratigraphic -- Quaternary -- Periodicals
Stratigraphie -- Quaternaire -- Périodiques
551.79 - Journal URLs:
- http://www.sciencedirect.com/science/journal/02773791 ↗
http://www.elsevier.com/journals ↗
http://www.journals.elsevier.com/quaternary-science-reviews/ ↗ - DOI:
- 10.1016/j.quascirev.2021.107095 ↗
- Languages:
- English
- ISSNs:
- 0277-3791
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 7210.220000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 18500.xml