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Ancient Antarctic Ice Extends Climate Records to 3 Million Years, Points to Ocean‑Led Shifts

Trapped air in Allan Hills blue‑ice cores reveals unexpectedly low and steady greenhouse‑gas concentrations in the late Pliocene and early Pleistocene.

Record 228-Meter Core Recovered Beneath West Antarctic Ice Points to Past Open Ocean

Space Dust Reveals 30,000 Years of Arctic Sea-Ice Shifts

Scientists Date Antarctica’s Oldest Ice and Air to 6 Million Years at Allan Hills

High-Resolution Stalagmite Record Uncovers Eight Multi-Year Droughts in Terminal Classic Maya Era

Antarctic’s 1.5-Million-Year Ice Cores Reach Europe for Analysis