University of Cambridge and British Antarctic Survey scientists have warned a major ice loss event could be a realistic possibility, if levels of greenhouse gases in the atmosphere keep rising. The researchers extracted ice cores from Antarctica containing air bubbles from hundreds of years ago.
This team of scientists are drilling deep into an ice sheet, 650 metres in fact, to extract a piece of Antarctic ice core.
The extracted ice cores contain air bubbles, which are a direct sample of 200 year old atmosphere in Antarctica. Air bubbles are released once the ice is immersed in water and when the ice melts amid warmer surrounding temperatures. With a mean annual surface temperature of minus 26 degrees Celsius, extracting ice cores in Antarctica was a physically challenging and slow process for the researchers involved.
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