Ice core CO2 and temperature, lead or lag, ongoing saga

A Saga indeed!

Deadal Earth

Argument over whether the two long ice cores, EPICA and Vostok are evidence of CO2 leading or lagging temperature has been going on ever since the core data was published. I assume the reader knows this.

A snippet has turned up as a result of an article at Bishop Hill.

Republished images as an aide memoir for the subject

Figure 1, click full size

Plots, own work. Pertinence, read on.

The Bishop Hill article is from an anonymous teacher of statistics where a cross-disipline dispute arose.

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The curiosity of the Neutron delay after sunspots

Tallbloke's Talkshop

A strange effect is months of delay of cosmic rays from solar sunspot cycle, not constant. This also has implications for 14C.

A plot of the two datasets taken from a live spreadsheet implementing data delay, set here for zero. Unfortunately the data tends to cause filter ringing and is impulsive anyway so this is not up to my usual standards of fidelity. A line plot doesn’t help but is clearer. Correlation peaks at r2 = 0.8, neutron data is inverted, data is normalised and made more comparable.

I’ve been meaning to post this for some time but the saga unfolding at Jo Nova with “a theory” where currently I have no idea whether it is reasonable might link.

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