http://www.bbc.com/earth/story/20170223 ... ocid=fbert
In Siberia there is a huge crater and it is getting bigger
"During the last 200,000 years, Earth's climate has alternated repeatedly between relatively warm "interglacial" periods and chilly "glacial" periods in which ice sheets expanded.
The Batagaika sediment layers provide a "continuous record of geological history, which is fairly unusual," he says. "That should allow us to interpret the climate and environmental history there."
However, for now the dates are not certain. "We are still working on the chronology," says Murton.
Next, he needs to gather and analyse more sediments. Ideally, these will be collected using a drill in order to get a "continuous sediment series", which will help give more accurate dates. The permafrost record could then be compared with data from other temperature records, such as ice-cores from ice sheets.
"Ultimately, we're trying to see if climate change during the last Ice Age [in Siberia] was characterised by a lot of variability: warming and cooling, warming and cooling as occurred in the North Atlantic region," says Murton.
This is important, because the climatic history of a huge part of northern Siberia is little understood. By reconstructing environmental changes that happened in the past, scientists could help forecast similar changes.
For example, 125,000 years ago, the climate was going through an interglacial period, during which it was several degrees warmer than it is now."
https://www.cambridge.org/core/journals ... 0DD2EBE4D#
https://motherboard.vice.com/en_us/arti ... in-siberia
"The Batagaika site contains a remarkably thick sequence of permafrost deposits, which include two wood-rich layers interpreted as forest beds that indicate past climates about as warm or warmer than today's climate".
Doesn't sound like the Answers in Genesis 'history of the world'. Past warmer climates? Separating the latest 'ice age' glaciation from an earlier one (though in recent geological time Siberia has always had frigid winters even during interglacials such as the present one)? (And where does a 'worldwide flood' less than 5,000 years ago fit in?)