Abaddon Earth is the offical name of the Earth that was consumed by snow during an event called the Great frost that left the world covered by snow. In the northern hemipshere of Abaddon Earth exists the Generator cities, which are the last remnant cities of this Earth. New London and the Ruins of Winterhome are two major cities within this universe. New Liverpool is a mythical city sometimes reffered to as the lost city of Atlantis along with several different Generator cities.
It is possible for human life to survive without the massive Generator as there do exists small settlements in the Frostlands. Some of their numbers are small but are enougth to have survived the Great storm.