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Oceans responsible for ice age every 1,00,000 years
Oceans may be responsible for making the Earth move in and out of ice ages every 100,000 years, finds a study. According to the study published in the journal Geology, oceans sucking carbon dioxide (CO2) out of the atmosphere may have triggered this phenomena.
London: Oceans may be responsible for making the Earth move in and out of ice ages every 100,000 years, finds a study. According to the study published in the journal Geology, oceans sucking carbon dioxide (CO2) out of the atmosphere may have triggered this phenomena.
Dubbed the "100,000-year problem", this phenomena has been occurring for the past million years or so and leads to vast ice sheets covering North America, Europe and Asia.
By studying the chemical make-up of tiny fossils on the ocean floor, the team discovered that there was more CO2 stored in the deep ocean during the ice age periods at regular intervals every 100,000 years.
This suggested that extra carbon dioxide was being pulled from the atmosphere and into the oceans at this time, subsequently lowering the temperature on the Earth and enabling vast ice sheets to engulf the Northern Hemisphere.
