Permafrost zones extend over 50% of Canada’s land area. Warming or thawing of permafrost due to climate change could significantly impact existing infrastructure and future development in Canada’s north. Researchers Jennifer Throop and Antoni Lewkowicz at the University of Ottawa, along with Sharon Smith with the Geological Survey of Canada, have published a new study, part of an upcoming special issue of the Canadian Journal of Earth Sciences (CJES), that provides one of the first summaries of climate and ground temperature relations across northern Canada.