What kept Earth frozen for 57 million years?
A new paper in Geology links the duration of the Sturtian Snowball Earth glaciation to exceptionally low CO2 outgassing from mid-ocean ridges — not volcanic arcs.
Duration of Sturtian 'Snowball Earth' glaciation linked to exceptionally low mid-ocean ridge outgassing
Exceptionally low mid-ocean ridge CO2 outgassing sustained the Sturtian Snowball Earth glaciation for over 50 million years.
