Ancient volcanoes emitted deep magma CO2 after surface eruptions, potentially contributing to past global warming.

A study in *Nature Geoscience* reveals that ancient volcanoes may have emitted carbon dioxide (CO2) from deep magma sources long after surface eruptions ceased, contributing to prolonged global warming episodes in Earth's history. This hidden CO2 source helps explain past climate changes and may inform strategies for future climate recovery. However, the study emphasizes that current human CO2 emissions far exceed those from volcanoes.

October 30, 2024
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