Ancient Volcanoes: Key to Earth's Carbon Cycle and Climate Recovery
New research by geologist Emily Stewart suggests that metamorphic rocks, rather than volcanic activity, played a significant role in the carbon cycle during the Proterozoic Eon by releasing carbon dioxide, which helped maintain Earth's temperature despite a dimmer sun. This challenges previous assumptions and highlights the importance of rocks in historical carbon cycling, offering insights into climate sensitivity and potential solutions for modern climate change challenges.
