books.google.ca - Low temperatures, wind-chill, snow, sea ice, and permafrost have been primary characteristics of Canada's northern and alpine environments during the past two million years. The evolution of Canada's cultural landscapes, the processes of settlement of rural areas, and the present interaction of Canadian...http://books.google.ca/books/about/Canada_s_Cold_Environments.html?id=nmTREEU3l2sC&utm_source=gb-gplus-shareCanada's Cold Environments