Figure 8 – Greenland (GISP2) and Antarctic (Vostok) climate records covering the last glacial-interglacial cycle. Upper part shows close correlation between GISP2 and Vostok d18O of O2 in air in these ice cores. Lower part shows close correlation between dD and d18O (proxies for temperature) of the ice. Modified from Bender et al. (1994).