Long-term Change in the Arctic
During the last 400 000 years, the Earth has experienced four ice ages which have left records in glacial ice accumulating in Antarctica (Petit et al., 1999) and in Greenland (Dansgaard et al., 1993; Sowers and Bender, 1995).
807: Persistent Toxic Substances, Food Security, and Indigenous Peoples of the Russian North
Long-term Change in the Arctic.pdf