Million year-old bubbles could solve ice age mystery
PNRA_IPEVAir and particles formed hundreds of thousands of years ago are trapped in the iceWhat 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.The...
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