Scientists drill nearly 2 miles down to pull 1.2 million-year-old ice core from Antarctic
People walk through an ice core storage cave at Little Dome C field base on Tuesday, Jan. 7, 2025, in in eastern Antarctica. An international team of scientists announced Thursday they’ve successfully drilled one of the oldest ice cores yet, penetrating nearly 2 miles to Antarctic bedrock to reach ice they say is at least 1.2 million years old.have evolved.
The same team previously drilled a core about 800,000 years old. The latest drilling went 2.8 kilometers deep, with a team of 16 scientists and support personnel drilling each summer over four years in average temperatures of about minus-35 Celsius . “It was a great a moment for us when we reached the bedrock,” Scoto said. Isotope analysis gave the ice’s age as at least 1.2 million years old, he said.
“Today we are seeing carbon dioxide levels that are 50% above the highest levels we’ve had over the last 800,000 years,” Barbante said.
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Scientists drill nearly 2 miles down to pull 1.2 million-year-old ice core from AntarcticaAn international team of scientists say they’ve drilled nearly 2 miles to Antarctic bedrock, retrieving one of the oldest ice cores at 1.2 million years old.
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