World’s Oldest-Known Glacier Identified

26th July 2023

Last modified on July 27th, 2023

Scientists have made the discovery near gold deposits in South Africa.

The glacial sediments date back 2.9 billion years.

The study published in the journal Geochemical Perspectives Letters also suggests the presence of continental ice caps at the time or that the area was closer to the Earth’s poles.

The period saw low concentrations of greenhouse gases in the atmosphere and led to a reverse greenhouse effect, that caused much of the planet to freeze.

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