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without wanting to labor a point (and that does cover a big portion of human civilisation, I agree) that is still far short of anything I would call "long scale
by ErrantX 17y ago
without wanting to labor a point (and that does cover a big portion of human civilisation, I agree) that is still far short of anything I would call "long scale".
I do think we need more work to push it back at least to 10,000 years if possible (particularly because it is important to see the effect of NO organised civilization in comparison)
- swombat 17y agoTruth (or at least data) comes to those who seek. A short google later: http://upload.wikimedia.org/wikipedia/commons/f/f5/All_palaeotemps.png http://upload.wikimedia.org/wikipedia/commons/f/f5/All_palae... It's worth pointing out that if you go too far back in the past, the data is actually meaningless. 5 billion years ago, when it was still being formed, I'm sure the Earth was a lot hotter than it is now - but that doesn't mean we wanna go back there. The real questions are: 1) Is the climate changing? (very probably) 2) Could the changes cause great disruption, war, famine, loss of life, etc? (probably) 3) Is that climate change induced by us? (maybe, or "probably" depending on who you listen to) 4) Can we do something about it?