Rapid emergence of life shown by discovery of 3,700-million-year-old microbial structures0
- Ancient Archeology, From Around the Web
- September 8, 2017
Biological activity is a major factor in Earth’s chemical cycles, including facilitating CO2 sequestration and providing climate feedbacks. Thus a key question in Earth’s evolution is when did life arise and impact hydrosphere–atmosphere–lithosphere chemical cycles?