“Polar Vortex” has become part of the oh-so-cold vernacular when describing seemingly locked in place artic air. Last week’s weather-related news cycle was dominated by all things “Polar Vortex”. In Canmore, Canada, the term is still being thrown around: the cold temperatures have not abated. On Thursday, the International Biathlon Union (IBU) is scheduled to begin its North American swing of races in Canmore with the men’s 20-kilometer and women’s 15 k individual races. Hold...