Since Jack hall is studying the effects of global warming. the effect that ice core samples tell about global warming is that Ice cores offer immediate information on past changes in greenhouse gas concentrations as well as direct proof that the climate can shift suddenly in certain situations.
As tree rings are to trees, so are ice cores to ice sheets. Ice cores reveal information about ice sheets in a same way that tree rings do for trees. Jack was collecting ice core samples from Antarctica so that scientists could examine the chemistry and make-up of earlier climates.
To investigate the glacial and interglacial periods, ice cores have been employed. Debris and chemicals are naturally preserved by the ice and snow.
Therefore, Note that Climate scientists examine greenhouse gas concentrations in ice core layers to reconstruct historical climates. Scientists can compute how current carbon dioxide and methane concentrations compare to historical ones.
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