"Scientists have successfully drilled through an Antarctic ice sheet to extract the longest ice core ever recovered, according to a report published today in the journal Nature. The cylinder of ice dates back nearly three-quarters of a million years and will help researchers better understand our planet’s history of cyclical climate variation.
"This has the potential to separate the human-caused impacts from the natural and place it in a much clearer context," explains James White of the Institute of Arctic and Alpine Research at the University of Colorado at Boulder, who was not involved in the research but penned a commentary on the find for this week’s issue of the journal Science.
An international collaboration known as the European Project for Ice Coring in Antarctica (EPICA) recovered the nearly three-kilometer-long core from a region of the East Antarctic ice sheet known as Dome C. The bottom of the10-centimeter-wide cylinder dates to some 740,000 years ago and nearly doubles the reach of the next-longest ice core, which was drilled at Vostok, Antarctica, in the 1980s and spanned the past 420,000 years."
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