Tag Archives: glaciations

At least twice in Earth’s history, almost the entire planet was locked in a layer of snow and ice. These dramatic “Snowball Earth” events occurred in rapid succession, somewhere around 700 million years ago, and evidence suggests that consecutive global glaciations set the stage for the subsequent explosion of complex, …

Not all glaciations are equally brutal. In the most extreme glaciation events known to science, ice spreads from Earth’s polar regions and spreads to lower latitudes, literally reshaping the face of the planet. Evidence of such epic transitions can be found in the geological record, most recently in formidable glaciations …