footnote:
that summer, 1816, wasn't just unnaturally cold and rainy in Switzerland, the whole world felt it. It was called "the year without a summer." There was famine from crop failures all over the world
this was all due to the eruption of Mount Tambora in Indonesia
so we can say, via the creativity of one bored cold teenager cooped up with nothing better to do except write, that we owe "Frankenstein" partly to massive climate disruption from a volcano
https://en.wikipedia.org/wiki/1815_eruption_of_Mount_Tambora