In this video, a PhD Student from the University of Maine explains how ice cores are used to study global climate change.

A series of activities designed to introduce students to the role of sediments and sedimentary rocks in the global carbon cycle and the use of stable carbon isotopes to reconstruct ancient sedimentary environments. Students will make some simple calculations, think about the implications of their results, and see an optional demonstration of the density separation of a sediment sample into a light, organic and a heavier mineral fraction.

This static graph of changes in CO2 concentrations is going back 400,000 years, showing the dramatic spike in recent years.

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