The Canadian government offers a helpful registration service for Canadians abroad. It's called the Registration of Canadians Abroad (ROCA) service (I guess they don't pay government employees to come up with catchy titles). ROCA can be used in two ways: 1) to inform you of an emergency at home, and 2) to contact you with urgent information and advice in case of an emergency. Practically, this means that the Canadian government can contact you if there's a major issue at your destination, such as civil unrest, or an earthquake or other natural disaster.