El Nino-like climatic cycles have been found in 2.4 billion year old rocks from during the Huronian Glaciation, the oldest known ice age during the Siderian PaleoProterozoic

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El Nino-like climatic cycles have been found in 2.4 billion year old rocks from during the Huronian Glaciation, the oldest known ice age during the Siderian PaleoProterozoic