Talk:Geography of the World of Avatar/@comment-3486433-20110317232320/@comment-94.11.11.218-20110413093829

Well, irl the Inuits have fairly dark skin, http://www.ego4u.com/images/countries/canada/nunavut03.jpg I guess it's because the air is thinner at the poles, hence there's less protection against UV radiation - so they need darker skin.