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Hidden ocean chain reaction may have driven ice ages

Original: Earth's ice ages may have been driven by a hidden ocean chain reaction

New research suggests Earth's ice ages may have been triggered by a chain reaction in the deep ocean, where changes in circulation and carbon storage could have amplified cooling into full glacial periods. The findings point to the ocean's hidden role as a driver of dramatic climate shifts in the planet's past, rather than changes in sunlight or atmospheric carbon alone.

Why now: Fresh research linking ocean processes to the origins of ice ages is drawing attention to how Earth's climate can tip into global glaciation.

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