Sea ice serves as a natural archive of historical atmospheric data, providing valuable insights into past climate conditions and helping to forecast future changes. As the ice forms, it captures atmospheric elements such as greenhouse gases, isotopes, and aerosols, which offer clues about the environmental conditions at the time of freezing.
This photo shows University of Guelph students engaging in the collection of sea ice cores in Alert, Nunavut, located just 800 kilometers from the North Pole.
