It’s fully 40°F cooler than it was at this time of the day, two days ago.

The sky is a color of orange that I literally cannot capture on any camera that I own—they all assume it’s physically impossible and white-correct the truth into oblivion.

I viscerally understand now several things that I did not before: the ambient color of pictures from the surface of venus, that nuclear winter would not be gray, and the year Eighteen Hundred and Froze To Death.

On the positive side, I am now much more optimistic about the likely success of geoengineering proposals to address global warming via stratospheric aerosol injection.