Scientists have recently successfully drilled into a 2,000 year old ice core in Antarctica, and can now directly observed how much the climate has evolved. In these ice cores scientists are able to receive information about previous climates using the chemistry of the air that was caught in the snow and ice. Ice cores are a very useful tool in paleoclimatology. From these little pieces of ice you can find our the solar radiation, volcanic activity and even storm events that occurred in the previous climates. Analyzing this cored will help scientists understand the series of ice ages and warm periods that occurred in the past. For more information about this drill you can read it here.
Source: AFP. "Polar Scientists Drill 2,000-year-old Ice Core : DNews." DNews. N.p., 8 May 2014. Web. 28 May 2014.
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