Other changes, including Heinrich events, Dansgaard–Oeschger events and the Younger Dryas, however, illustrate how glacial variations may also influence climate without the orbital forcing.
Andre forandringer herunder Heinrich begivenheder, Dansgaard–Oeschger begivenheder og Yngre Dryas viser at variationer af ismassen potentielt har stor betydning for udviklingen af klimaet selv uden kredsløbs variationer.