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grindstone cowboy

20,386 Posts.

107

15/01/20

08:46

Post #: 42383328
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Originally posted by jambo12: ↑

Lapdog, here’s a link that explains it.

“Temperature records from thermometers and weather stations exist only for a tiny portion of our planet's 4.54-billion-year-long life. By studying indirect clues—the chemical and structural signatures of rocks, fossils, and crystals, ocean sediments, fossilized reefs, tree rings, and ice cores—however, scientists can infer past temperatures.”

https://www.climate.gov/news-features/climate-qa/whats-hottest-earths-ever-been
They don’t explain how it’s all the fault of Sir Keith Murdoch but I’m sure you can attempt to try.

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baby boomers living in the past, pining for the Good Old Days, 600 million years ago!
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