The Left Hand of Darkness Man and the Natural World Quotes

How we cite our quotes: (Chapter.Paragraph)

Quote #10

We seldom talked while on the march or at lunch, for our lips were sore, and when one's mouth was open the cold got inside, hurting teeth and throat and lungs; it was necessary to keep the mouth closed and breathe through the nose, at least when the air was forty or fifty degrees below freezing. (18.12)

Curious has to how extreme that Gethen weather can get? Because that's pretty extreme. No wonder these guys haven't gotten around to inventing planes.