Carbon dioxide levels are linked to Milankovitch cycles in ice core data

the verdict

SUPPORTED

the evidence backs this

Recorded sources

4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Ice core data and paleoclimate modeling demonstrate that atmospheric carbon dioxide levels are closely coupled with glacial cycles paced by Milankovitch orbital forcing.

The analysis

The retrieved scientific literature consistently supports the link between carbon dioxide levels and Milankovitch orbital cycles as observed in ice core and paleoclimate proxy data. Multiple papers examine how orbital forcing drives glacial cycles and how carbon dioxide acts as a key feedback or amplification mechanism within these cycles.

Evidence for · 4

Stochastic paleoclimatology: Modeling the EPICA ice core climate records.

Recorded source metadata

N. Keyes, L. T. Giorgini, J. Wettlaufer. Stochastic paleoclimatology: Modeling the EPICA ice core climate records.. 2022. https://doi.org/10.1063/5.0128814

Analyzes 800 kiloyears of EPICA ice core data to examine the coupling of carbon dioxide and temperature during Pleistocene glacial cycles.

Source citation format

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More for · 3

Iron in the NEEM ice core relative to Asian loess records over the last glacial–interglacial cycle

Recorded source metadata

C. Xiao, Z. Du, M. Handley, P. Mayewski, Junji Cao, S. Schüpbach, Tong Zhang, J. Petit, Chuanjin Li, Yeongcheol Han, Yuefang Li, Jiawen Ren. Iron in the NEEM ice core relative to Asian loess records over the last glacial–interglacial cycle. 2020. https://doi.org/10.1093/nsr/nwaa144

Indicates that variations in mineral dust input and carbon dioxide relationships in the NEEM ice core are driven by solar radiation changes in response to Earth's orbital cycles.

Source citation format

The role of orbital forcing, carbon dioxide and regolith in 100 kyr glacial cycles

Recorded source metadata

A. Ganopolski, R. Calov. The role of orbital forcing, carbon dioxide and regolith in 100 kyr glacial cycles. 2011. https://doi.org/10.5194/cpd-7-2391-2011

Demonstrates that temporal variability in atmospheric carbon dioxide plays an important role in the amplification of 100-kyr glacial cycles synchronized with orbital eccentricity.

Source citation format

Interglacials, Milankovitch Cycles, Solar Activity, and Carbon Dioxide

Recorded source metadata

Gerald E. Marsh. Interglacials, Milankovitch Cycles, Solar Activity, and Carbon Dioxide. 2014. https://doi.org/10.1155/2014/345482

Notes the established understanding that interglacial periods are initiated by Milankovitch cycles enhanced by rising atmospheric carbon dioxide concentrations.

Source citation format

The paper trail · every fact has a biography

first checked02 Aug 2026

judged → SUPPORTED · 8202 Aug 2026

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