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The Antarctic Cold Reversal (ACR) was a climatic event of intense atmospheric and oceanic cooling across the southern hemisphere (>40°S) between 14,700 and 13,000 years before present (BP) that interrupted the most recent deglacial climate warming. This cooling event was initially well noted in Antarctic ice core records. Soon after, evidence from sediment cores and glacial advances from land masses and Oceanic sectors south of 40°S expanded the region of this climate cooling event. The ACR illustrates the complexity of the climate changes at the transition from the Pleistocene to the Holocene Epochs.
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