Marco Abis - personal
.
@me,
When Earth Breathed Deeply
by Claire Bucholz (Assistant Professor of Geology in the Division of Geological and Planetary Sciences at Caltech)
Oxygen levels in the atmosphere have increased by many orders of magnitude throughout Earth's history, profoundly affecting biologic and chemical cycles at the surface of the Earth. In this lecture, Bucholz will explore how shifts in atmospheric oxygen concentrations went even deeper, altering Earth's inner workings.
www.youtube.com/watch?v=TEATsQALCoE