What is the setting of The Left Hand of Darkness by Ursula K. Le Guin?

During the chapters that take place in urban settings, the extreme cold that prevails over this planet is not very relevant. Housing accommodations in Erhenrang, the capital of Karhide, and in the Orgoreyn capital of Mishnory are slightly different than Earth's, more collective in order to conserve heat, but in general social life is not much different than it would be in a cold city like Minneapolis or Buffalo.