Paleo-perspectives on environmental change in the high Arctic: the Canadian Contribution

Jocelyne Bourgeois, Christian Zdanowicz, David Burgess, David Fisher, David Lean, , Michael Krachler, Roy Koerner & William Shotyk
Background: The snow and ice of the polar regions contain a wealth of information on the variability of the Earth¿s climate, past and present, and atmospheric composition. Many of the chemical compounds and aerosols found in the atmosphere find their way to the Arctic and are retained by the snow. Within large ice caps and ice sheets, annual snow layers accumulate. At depth, these layers are transformed into ice; preserving in the process much of...
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