Conversation

@ashwinvis From Finney and Edwards paper:

"The evolution of vascular land plants and their spread across the continents ... completely altered Earth’s surface, left a significant stratigraphic record, and dramatically altered CO2 and O2 concentrations in the atmosphere and oceans far greater than humans are projected to do ... Yet there is no drive to name a unit in the ICS Chart that formally recognizes that profound and irreversible change to the Earth system."