Antarctic Ice Cores

Antarctic Ice Cores

Ice cores are the time machines that allow us to investigate past climate. They preserve actual bubbles of air that mean that we can look at past concentrations of greenhouse gases in the atmosphere. They allow us to reconstruct past temperature and precipitation changes, and help us understand relationships between the composition of the atmosphere and changing climate. We can use ice cores to put modern climate change into an 800,000 year perspective, allowing us to investigate past rates and magnitudes of change. Learn more about ice cores in this section.

Further information

An accessible and interesting article from BAS on how ice cores are extracted and analysed.
An excellent but quite high-level article from Zeke Hausfather at the Carbon Brief about the relationships between carbon dioxide and temperature, revealed in ice cores.

Watch this excellent video from the University of Washington, featuring Eric Steg, about Antarctic ice-core drilling.

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