US scientists have uncovered 6-million-year-old ice in Antarctica’s Allan Hills, containing ancient air bubbles that reveal details of Earth’s long-term cooling. This breakthrough offers vital clues about past climate patterns and may guide predictions for the planet’s future
Drilling of the ice core. PICS COURTESY/Oregon State University
US scientists have discovered 6-million-year-old ice from the Allan Hills region of East Antarctica, which holds tiny air bubbles that act as “time machines,” granting a look into the planet’s past climate. The discovery comes from the drilling of ice cores in Allan Hill.
Like time machines, ice cores enable scientists to look back and see Earth’s past climate. The findings have provided the first direct measure of Antarctica’s long-term cooling trend. Scientists hope the environmental history locked in this ancient ice will offer guidance for the future.
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