Air turbulence This would be a great place to inject some physics, but they can’t. The article calls it ‘clear air turbulence’ not ‘Clear air convection’. This was big in the 70’s and now is big again. All due to the ice cycle. Had they stuck to the studies they were doing in the 70’s, we’d have an easy answer now. However, all this was killed when nasa decided to ride the bandwagon of the popular mob-thought. Fasten your seatbelt!
The problem with heritage These buildings are all wood, contained by weak brick. Montreal is as bad an earthquake zone as anywhere in the world, and the old city is all on soft soil. The alternative, as with Toronto, is to tear them all down, leave the brick facade, put a lot of steel in, raise the foundations on screw piles, and install sprinklers. Sadly, this does something to the genteel aura of decay.
Descended from Unix freaks, I evolved to Linux. Some people might consider me old at 60+, but I'm suing the world to get my age down to 30.
I have a blog https://ontario-geofish.blogspot.com/
and it is read by 8 people. My formal education is in an extinct branch of science called geophysics. Since there was no money in it, I went to engineering. I've done tunnels, radwaste thingies, etc.