Paleo Slide Set: Polar Ice Cores Tent city Faced with this lack of privacy, many researchers opted for more private, but much colder, unheated tents such as these. During storms, the white sky and featureless white ice sheet made disorientation a distinct and dangerous possibility. It is hard to imagine a worse place to get lost than the unrelenting, unpopulated expanse of the Greenland Ice Sheet. Flag lines were placed along all major routes of travel around the camp to prevent researchers from losing their way during frequent whiteouts. Photo Credits: Kendrick Taylor DRI, University of Nevada-Reno