Snowball Earth
Sign in to saveworldwide glaciation episodes during the Cryogenian Period of the Neoproterozoic Era
~40 min read
Encyclopedic overview
Artist's rendition of a fully-frozen Snowball Earth with no remaining liquid surface water
Estimate of Proterozoic glacial periods. Vertical axis: millions of years ago
Excerpted from Wikipedia’s “Snowball Earth” article, available under the CC BY-SA 4.0 licence.