Yesterday the pressure over London climbed to 1034 hPa. As I cycled to London Bridge, it felt like anything in the air was being pushed out, even flung out, of the air above the city. I could see a dark cloud in the distance but as I cycled its shape got smaller and smaller, fleeing. The temperature had also dropped several degrees. Everything felt to be in motion, an intensity of forces.

As I left the house at 6:30am today, the coldness remained but the pressure had dropped. During my lecture in Atmospheres: Nature, Culture, Politics, the rain suddenly arrived, pelting the classroom’s porous windows with great urgency. ‘Hello rain!’ I said in my lecture. During a break I cracked a window and observed two muntjack deer grazing placidly on the field below.