What is probably the world’s oldest ice, dating back 1.2m years ago, has been dug out from deep within Antarctica. Working at temperatures of -35C, a team of scientists extracted a 2.8km-long cyclinder, or core, of ice – longer than eight Eiffel Towers end-to-end. Suspended inside the ice are ancient air bubbles which scientists hope will help solve an enduring mystery about our planet’s climate history.
Their work could help unravel one of the major mysteries in our planet’s climate history – what happened 900,000-1.2 million years ago when glacial cycles were disrupted and some researchers say our ancestors came close to extinction.
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