Ancient Air in an Antarctic Ice Core
A Catalyst article about ice cores from Antarctica which contain air bubbles which record the changing atmosphere. The Antarctic ice sheet is over 3 kilometres thick; ice cores enable scientists to sample each year of snow fall in sequence. This evidence is vital in understanding how the climate is changing. The article explains what scientists are looking for, the results that they have obtained so far and how the drilling is carried out.
This article is from Catalyst: Secondary Science Review 2008, Volume 18, Issue 4.
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.
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