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Originally Posted by Graham
Tree ring evidence? Ice Cores? Layers of ocean sediment? There seems to be a fair bit of hard evidence from where I'm looking.
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It's only 'hard' evidence if you accept their interpretation of things which are in no way hard/fast proof. They just suggest the way the climate might have been.
And tree rings don't go that far back. If we're looking for an Ice Age, then consider that the last one was between 10000 and 50000 years ago!
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Originally Posted by Graham
This is disingenuous. It's not a matter of whether it will rain over your house next Friday, it's the effect on the whole system.
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Quite - so MUCH more difficult, hence so more likely to be wrong.