By Aleksandra Wozniak, University of Calgary, Canada.  After spending Christmas in England, I was welcomed back into Canada with -37C weather. Although I was shivering the whole way back to my accommodation, I could see people outside going about as if nothing happened – some even walking around in shorts! Depending on the region of Canada you are in, you’ll likely be met with temperatures ranging between -40C in the winter to 35C in the summer. Still, the cold weather tends to come in waves in the winter. Although you will almost inevitably be met with colds of -30, these don’t usually last longer than a few days before Chinook…