I'm one of those human weathervanes and get terrible headaches ahead of rainy weather. I've logged such episodes in a notebook and they seem particularly bad during Atlantic hurricane season. My quack, untested, idea is that climate change is leading to a greater incidence of headache.
What about climate change would cause headaches? Temperature changes seem an unlikely source, and CO2 concentrations would be changing much higher in the atmosphere, not anywhere close to ground level.
Earlier blooming flowers for an earlier allergy season.
The rate of changes from significant weather events is up (e.g. number of storms and the amount of the change in pressure).
CO2 concentrations are changing quite enough at ground level, though that gets to even a ventilation issue in the house or workplace. Working at home I've put a CO2 meter in the room where I work and I can see the fluctuations in that room over the course of a day with me working in it. Overall the world has gone from about 320 ppm in 1960 to 420 ppm in 2021. My reading for "in this room" is currently 687. Normally its in the 530 to 640 range across a day, but if I do any baking (gas stove) it can go up significantly and takes a few days (cold weather - don't have windows open) for it to return back down to pre-baking levels.
CO2 concentrations are rising everywhere. It's just easiest to measure consistently in the high atmosphere because it averages out the local sources/sinks.
Getting a high rise apartment (or office) should fix that. Or moving to a place that has a higher elevation.
(I don't think an absolute increase in atmospheric pressures has caused anyone a headache ever. Relative changes over a short enough time might do so, though.)
