How the Southern Ocean helped fuel Earth's warmest climate in 65 million years

PHYSorg
Nov 9, 2026, 2:20 pm120 ptsTrending
About 50 million years ago, Earth experienced its warmest climate since the extinction of the dinosaurs. Global temperatures were more than 10°C higher than today, and atmospheric CO₂ concentrations reached around 1,600 parts per million. But what kept CO₂ levels so extraordinarily high for millions of…

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