[cogitator]

he temperature warms and then - roughly 800 years later - the CO2 rises

This timing has been called into question by recently published research.

New constraints on the gas age-ice age difference along the EPICA ice cores, 0–50 kyr. (PDF)

[Old Professer]

Smoke doesn’t cause fire.

[Old Professer]

Your link relates to a surface-based study of the Antarctic and was published 6 months ago; now we need a study to incorporate both sets of data; a process like this can go on as long as the funding lasts.

And no solution comes forth, just the same old “Turn out the lights...”

[agere_contra]

Thank you for that paper. Still raising the bar I see :0)

It looks like the authors have found a probable miscalibration in gas chronology techniques, using a known Be10 peak and a better-than-previously characterised CH4 peak.

One of the probable results is that the Temperature-then-CO2 lag isn’t 800+- 600 yrs, but something smaller. So the Vostok lines should get closer together.