Cheese and Ball Lightning

I found myself climbing up out of the buried city, and beholding the world made new, covered in a layer of cheese ten meters deep, everywhere. It had begun falling in the fall, and by winter, the world was covered in warm velvety goodness. Religions, governments and economies the world over collapsed. Clogged up hydro electric plants, covered solar plants, stuffed up the intakes and outputs of gas and oil fired plants left much of the world buring cheese for energy. Humanity survived because the fall was gradual enough to stay on top of it, to dig one's homes and shops out from under it, mostly. Most importantly, it was completely edible. Apparently it was also rot resistant as well, a giant edible organism, like overabundant mana from heaven. During the same period of time, the ball lightning showed up. I remember looking at one YT video, shot from a security camera, so yellow and orange in hue as to look sepia-toned, where an unbearably bright ball of lightning was moving along the third floor of a hotel, and stopping momentarily at each door, its lightning tendrils snaking out along the door and window frames, blue white and crackling, as if searching for something, then moving on. The bottom two floors were not visible as the parking lot and lower levels were filled with the creamy yellow orange cheese. Fireweed, fleasbane and short grasses had alread begun to colonize the smooth surface. Whispy threads of smoke followed the ball lightning where its arcs touched the layer of cheese on the handrails and walkway.