Interglacial optimum
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An interglacial optimum is a period between glacial maxima during which Ice Sheets of an Ice Age expand to their greatest extent. During an interglacial optimum, sea levels rise to their highest values, falling again once large amounts of Ice are withdrawing water from the world's oceans. In actual fact, the whole of the last 10,000 years of the Holocene period is thought to comprise such an interglacial. The previous interglacial optimum occurred in the Late Pleistocene period, from about 130,000 to 85,000 years ago. Shortly thereafter climates worsened again.
