Highly correlated with the 120,000 year core taken in Dronning Maud Land in Greenland, this study will serve as a benchmark for future Climate Change research.
- Early interglacial periods were characterized by less pronounced warmth than those of the past four climatic cycles. The rainbow colors represent temperature from blue (9° colder than today) to red (4.5° warmer than today).
- The study suggests that interplay between obliquity (the tilt of the Earth's axis as shown by the red line on the graph) and precession (change in the position of the Earth's pole as shown by the black line on the graph) accounts for the variable intensity of interglacial periods in the ice core records.
- CO2 and CH4 (greenhouse gas) over the past 650,000 years seem to lag behind Antarctic and tropical temperature changes rather than preceed them.
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