Changes in Earth’s orbit enabled the emergence of complex life

Changes in Earth’s orbit enabled the emergence of complex life

‘Snowball Earth’ is the most extreme climate event in Earth’s history, when it was completely engulfed in ice. The theory of its existence has faced two challenges – how life survived and variations in rock formations from the time implying changes to the climate cycle. New study shows that changes to Earth’s orbit caused the ice sheets to advance and retreat, providing ice-free ‘oases’ for animal life and explaining variations in rock formations.

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