Friday 30 April 2010

Ice Age theories warming up

One of the more interesting results from recent research into climate is that for the past million years or so, the earth’s climate has shown a distinct 100,000 cycle of long ice ages punctuated by a brief, warm intergalacials. We are in one of those brief warm periods, an interglacial period that is called the Holocene.

This cycle can be seen in the temperature graph below taken from publically available Vostok ice core data. The ice cores are very long sections of ice in which ancient climates can be worked out by careful analysis of atomic isotopes of layers of ice, where each wafer thin layer represents a year. Although there are other ways to determine past climatic conditions the Vostok cores (the site is in Antarctica but run by Russian scientists) are remarkable in being a connected track of temperatures of several hundred thousand years. more...

4 comments:

Mark Wadsworth 30 April 2010 at 17:27  

Oh bugger. I hate the cold.

The Network 30 April 2010 at 23:02  

me too I was looking forward to balmy summers and mild winters,

Anonymous 1 May 2010 at 16:45  

Good Article.

I began building a chart that reflected my research in the area. This will help my work greatly.

Thank you.

Paul Pierett

The Network 1 May 2010 at 20:43  

paul if you write an article let us know and we'll post it.

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