Arctic sea ice [image credit: Geoscience Daily]
The authors propose that sea-ice formation is the key factor and not biology. In their paper, we read: ‘Results: Carbon dioxide is very strongly correlated with sea ice dynamics, with the carbon dioxide rate at Mauna Loa lagging sea ice extent rate by 7 months.’ However, drawing conclusions from correlations can go wrong. The authors conclude: ‘If sea ice does not drive the net flux of these gases, it is a highly precise proxy for whatever does. Potential mechanisms should be investigated urgently.’
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Could we be wrong about the annual cycle of carbon dioxide in the atmosphere? – asks Net Zero Watch.
That’s the suggestion by a pair of distinguished Oxford zoologists Clive Hambler and Peter Henderson who have just published a paper that could change our understanding about one of the key observations of this greenhouse gas.
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