Justin Trudeau is the leader of the center-left Liberal party of Canada, he has been Prime Minister of Canada since the Liberals won a majority government in 2015.  The incumbent Liberal party is currently trailing in the polls, with the center right Conservative Party of Canada polling at a 99% chance of victory, the next election is scheduled to take place in October 2025.

Geoengineering is the deliberate large-scale manipulation of an environmental process that affects the earth's climate, in an attempt to counteract the effects of global warming. Carbon capture and proposals to block part of the sun's light in order to reduce the amount of heat that makes it to the surface of the earth are examples of geoengineering.

A strike is when a group of workers, usually a union, refuses to work as a negotiating tactic in order to fight for better conditions or pay. In Canada, people such as firefighters and police officers are classified as 'essential workers' and are not allowed to strike during their designated work hours.

Common law is a system of law in which the law is composed of legislation and judicial decisions in which judges have ruled how certain law should be interpreted (for example, in the United States in the case Obergefell v. Hodges the supreme court ruled that the 14th amendment of the constitution of the United States protects the right of gay people to marry. This ruling is now law unless overturned by the courts, and means that the government cannot prevent gay people from marrying). Civil law refers to a system of law in which the law is only composed of legislation passed by the government. In Canada, the federal government and all of the provinces except Quebec us a common law system, while Quebec uses primarily a civil law.