EMH
Diamond Member
- Apr 5, 2021
- 30,223
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Climate always changes. Please show me on this graph where it didn't. I'll wait.
View attachment 1151004
That chart is actually from one ice core from Antarctica, and the "temperature" is "determined" by an oxygen isotope ratio... and it is near the tectonically and volcanically active Antarctic Peninsula. There is "A grade" data and then there is "D- grade," and that chart is in the D- category.

