Cycles of climate change marked by the advance and retreat of glaciers over the last 2.6 million years. These cycles are characterized by alternating periods of cold (glacial) and warm (interglacial) climate.
Cycles of climate change marked by the advance and retreat of glaciers over the last 2.6 million years. These cycles are characterized by alternating periods of cold (glacial) and warm (interglacial) climate.