Antarctica developed a continental-scale ice sheet 34 million years ago while Earth was about 5°C warmer than today — helped by slow-moving mantle waves that had spent more than 100 million years lifting its interior high enough for permanent ice to surviv - Space Daily
Source:Space Daily
A 2026 modelling study links East Antarctica’s high plateau to mantle processes begun during Jurassic breakup, while retaining falling carbon dioxide as the main trigger for glaciation.
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