A 485-million-year history of Earth’s surface temperature

Emily J. Judd; Jessica E. Tierney; Daniel J. Lunt; Isabel P. Montañez; Brian T. Huber; Scott L. Wing; Paul J. Valdes

doi:10.1126/science.adk3705

September 19, 2024Science

A 485-million-year history of Earth’s surface temperature

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Key Points

Earth spent more time in warm rather than cold climates over the past 485 million years, maintaining consistent latitudinal temperature gradients across individual climate states.
Global mean surface temperature spanned a wide range from 11° to 36°C, showing a strong correlation with atmospheric carbon dioxide variations throughout the reconstructed history.
Statistical integration of proxy data with climate model simulations produced the PhanDA record, highlighting critical dynamical limits and feedbacks within the Earth system.

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Implication

Climate reconstruction reveals Earth spent more time in warm than cold states over 485 million years, highlighting strong links between atmospheric carbon dioxide and global mean surface temperature.

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Cite This Study

Judd et al. (2024) studied this question.

synapsesocial.com/papers/68e57fadb6db64358751d16b https://doi.org/10.1126/science.adk3705

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A 485-million-year history of Earth’s surface temperature

Key Points

No abstract yet

Implication

Discussion

Cite This Study

A 485-million-year history of Earth’s surface temperature

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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