In Canada, this can be extremely and bitterly cold conditions, along with heavy snowfall. In other places in the world, this can mean working in torrential rains, or extremely hot weather (with or without high humidity). On ships, you have to be concerned about typhoons and hurricanes, and occasionally tsunamis from earthquakes.
On the other hand, if you work in such conditions then you live in such conditions. If you are involved in ground services in Canada then you live in Canada and you are already familiar with the bone-chilling winters there. You would simply be exposed to such conditions a little bit more. In other words, it is simply another thing that you need to consider when pursuing such a career.
A career at this airline (and, again, which may be typical to that in your locality) requires to be/have: a valid driving license; a flexible work schedule (the ability to work whenever called upon); complete a full-time training schedule for two weeks; the ability to perform heavy physical work outdoors; the ability to pass national security clearances and the obtainment of a Transport Canada Security Card (issued by the Ministry of transportation); and be a Canadian citizen or an immigrant with appropriate work visas. Additional duties would include driving and operating vehicles and equipment related to performance on the tarmac; and the towing of aircraft to the gate, followed by the unloading and perhaps reloading of cargo as well as passenger baggage.
Additional requirements (some, for specific positions) are the ability to lift cargo weighing up to 70 pounds (32 kilograms) by yourself; training of up to four weeks; following time-management policies and procedures to ensure both on-time departures and safety at the same time; work harmoniously in a team environment; and preferably be bilingual.
Such a position pays CAD11.35 per hour.