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Flood basalt buildup warms climate

Flood basalts are connected to Earth’s most extreme environmental crises, yet warming is sometimes observed before surface eruptions. Modelling reveals that a complex buildup of basalt intrusions into the crust releases enough CO2 to cause this pre-eruptive warming.

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Fig. 1: Columbia River Basalt Group, WA, USA.

Jennifer Kasbohm.


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Correspondence to Jennifer Kasbohm.

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Kasbohm, J. Flood basalt buildup warms climate. Nat. Geosci. 15, 342–343 (2022).

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