(MENU) REQUIREMENTS I. Ice Age - Glacial - Polar - Evidence - - U-Shaped Valleys - - Landscapes - - Till - - Erratics - - Striations - - Drainage Patterns - - Crustal Rebound - Oceanic - Isotopes II. Legacy - Pollen - Ragweed - Migration - Wallace - North Atlantic - South American - Population - Current - Super-Interglacial - Future VISUALS CREDITS