Cited by 37Geology and Paleoclimatology ResearchPaleontology and Stratigraphy of FossilsClimate variability and models

Faint young Sun problem more severe due to ice-albedo feedback and higher rotation rate of the early Earth

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Kienert, Hendrik, Feulner, Georg, Petoukhov, Vladimir·2012·Geophysical Research Letters

Abstract

During the Archean (3.8–2.5 billion years ago), the Sun was up to 25% less luminous than today, yet there is strong evidence that the Earth's ocean surface was not completely frozen. The most obvious solutions to this ‘faint young Sun problem’ demand high concentrations of greenhouse gases such as carbon dioxide. Here we present the first comprehensive 3‐dimensional simulations of the Archean climate that include processes as the sea‐ice albedo feedback and the higher rotation rate of the Earth. These effects lead to CO2 partial pressures required to prevent the Earth from freezing that are significantly higher than previously thought. For the early Archean, we find a critical CO2partial pressure of 0.4 bar in contrast to 0.06 bar estimated in previous studies with 1‐dimensional radiative‐convective models. Our results suggest that currently favored greenhouse solutions could be in conflict with constraints emerging for the middle and late Archean.

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Authors
Kienert, H., Feulner, G., & Petoukhov, V.
Affiliations
Potsdam Institute for Climate Impact Research (DE)
Corresponding author
Kienert, Hendrik
Venue
Geophysical Research Letters
Published
2012-12-15
Volume
39
Issue
23
ISSN
  • 0094-8276 (ISSN-L)
  • 1944-8007
OpenAlex
W1572654037
Cited by
37
References
41
Citations by year
2026: 5 · 2025: 1 · 2024: 1 · 2023: 3 · 2022: 1 · 2021: 1 · 2020: 2 · 2019: 2 · 2017: 3 · 2016: 2 · 2015: 4 · 2014: 5 · 2013: 7
FWCI
3.50
Type
journal article
Language
en
Open access
Locations
  • Geophysical Research Letters (publishedVersion)
  • Publication Database PIK (Potsdam Institute for Climate Impact Research (PIK)) (submittedVersion, other-oa)
Funders
Evangelisches Studienwerk Villigst
Topics
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
Keywords
sea ice albedo feedback, Earth rotation rate, partial pressure of CO2, greenhouse gases, early Earth climate

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