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A glacial depositional feature – an erratic – is a large rock that has been ‘bull-dozed’ and deposited by a moving glacier. Elizabeth Rudolph

Marion Island’s last ice age happened earlier than we thought. Why it matters

These findings are in stark contrast with the original worldview that suggested the entire globe was at a maximum glaciated state around 20 000 years ago.
Since the industrial revolution began in the mid-1700s, atmospheric carbon dioxide concentrations have gone up by 46%. from www.shutterstock.com

Climate explained: why we won’t be heading into an ice age any time soon

For the past two and a half million years, Earth has experienced regular ice ages, but with carbon dioxide levels now over 400 parts per million, the next ice age is postponed for a very long time.

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