Global warming may be normal at this point in glacial cycle, by Lewis Page, The Register

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German and Russian scientists say that it is normal for an interglacial period like the one just ending to finish with one or more brief – in geological terms – spells of warming before the glaciers return.

According to boffins based at the Helmholtz-Zentrum für Umweltforschung (UFZ) and at the Russian Academy of Sciences, in the Earth’s history thus far there have been eras where the glaciers covered much of Europe, lasting about 100,000 years. These are separated by warmer interglacial periods lasting around 10,000 years. We are currently at the end of an interglacial era called the Holocene.

The scientists, looking into the last interglacial period – the Eemian – which ended around 115,000 years ago, say they have found that that it ended with “significant climate fluctuations” before the rule of the glaciers returned.

The scientists got their results by examining ancient lake sediments exposed by modern open-cast mining in Russia and Germany. They believe that the end of the Eemian interglacial epoch saw “possibly at least two” warming events, according to a statement issued by the UFZ.

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Source: theregister.co.uk

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