Harold Brooks wrote:

Fogs sufficiently common at this time of year that I'm sure there's a
"major" (depending on your definition of major) fog event every day.

Just because something makes no sense, does not mean it isn't most of
the answer. Consider how long Newton was kept waiting for the correct
data after stumbling on the conclusion about the inverse square law and
gravity.

The last day of the last spell brought record cold temperatures in
parts of the UK . It also brought heightened warnings of tornados and
of course the spell took in thos two cyclones in Australia.
Just coincidence. And meaningless kookery.

Here is something that has been researched on the subject at hand:
Nasa News Stories Archive March 15, 2006
NASA STUDY LINKS "SMOG" TO ARCTIC WARMING

Ozone is formed from several other chemicals found in the atmosphere
near the Earth's surface that come from both natural sources and
human activities such as fossil fuel burning, cement manufacturing,
fertilizer application and biomass burning. Ozone is one of several air
pollutants regulated in the United States by the U. S. Environmental
Protection Agency.
http://eobglossary.gsfc.nasa.gov/New...031521918.html

They have lost the plot of course but they formed a link, however
tenuous.
What a pity they couldn't get someone to stick with it.