Unless one doesn't believe in it, I know geological time is much longer than 600,000 years I actually paid attention in geology.

I believe records would go back further if there was a way of collecting such data. So the point is that 600,000 years of atmospheric records aren't convincing enough?

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1974 240D 3.0L 4(M) - 250K -OM617.910 + 300D FW + Rajay turbo power!
1977 6.9 3(A) - 84k