| Glaciation in the Pleistocene was a series of glacials and interglacials, stadials and interstadials, mirroring periodic changes in climate. |
| The shorter and warmer intervals between glacials are referred to as interglacials. |
| The cycles in the isotope ratio were found to correspond to terrestrial evidence of glacials and interglacials. |
| This then provides the opportunity for Milankovich cycles to become the pacemaker of the ice ages, causing alternating glacials and interglacials. |
| The interglacials and glacials coincide with cyclic changes in the Earth's orbit. |
| The glacials and interglacials also coincided with changes in Earth's orbit called Milankovitch cycles. |
