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Technically? If you count Antarctica then yes it was more like 30 million years ago. The massive northern hemisphere ice sheets are much more recent. The Late
by goodSteveramos 3y ago
Technically? If you count Antarctica then yes it was more like 30 million years ago. The massive northern hemisphere ice sheets are much more recent.
The Late Cenozoic Ice Age,[5][6] or Antarctic Glaciation,[7][8] began 34 million years ago at the Eocene-Oligocene Boundary and is ongoing.[5] It is Earth's current ice age or icehouse period. Its beginning is marked by the formation of the Antarctic ice sheets.
In the last three million years, glaciations have spread to the northern hemisphere. It commenced with Greenland becoming increasingly covered by an ice sheet in late Pliocene (2.9-2.58 Ma ago)[11] During the Pleistocene Epoch (starting 2.58 Ma ago), the Quaternary glaciation developed with decreasing mean temperatures and increasing amplitudes between glacials and interglacials. During the glacial periods of the Pleistocene, large areas of northern North America and northern Eurasia have been covered by ice sheets.