Thread: Climate Change
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Old 28-07-2026, 22:52   #650
jem
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Re: Climate Change
Quote:
Originally Posted by mrmistoffelees View Post
Ice cores ?
Among other methods - for ice cores it’s the isotopic composition of gasses trapped in tiny bubbles frozen in the ice. Another method is tree rings - although they only really work back a few thousand years, and ocean sediment cores.
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