Texas A&M Geoscientist Finds Link Between Antarctic Ice and Carbon Dioxide

We were analyzing cores from Africa, in Tanzania, and these cores contain really exceptionally well-preserved microfossils. And the cores we have cover this interval where there’s a big climate transition between a very warm, greenhouse world to an icehouse world. So we can use the fossils and their chemistry to tell us how climate was changing through that interval. The preceding interval was very warm, and had high levels of carbon dioxide in the atmosphere, and as we go across this interval, we end up with this cold, icehouse world that we’re still in today, and associated with that was a decrease in carbon dioxide levels in the atmosphere.

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