FIGURE 6.5 Greenland (GISP2) and Antarctic (Vostok) climate records covering the last glacial/interglacial cycle. Top: Plot shows the close correlation between GISP2 and Vostok δ18O of O2 in air in these ice cores. Bottom: Curves show close correlation between two proxies for temperature, δDice (Vostok) and δ18O (GISP2) in the ice. SOURCE: Adapted from Bender et al. (1994). Courtesy of Macmillan Magazines Ltd.