A land of vast distances and rich natural resources, Canada became a self-governing dominion in 1867, while retaining ties to the British crown. Canada repatriated its constitution from the UK in 1982, severing a final colonial tie. Economically and technologically, the nation has developed in parallel with the US, its neighbor to the south across the world's longest international border. Canada faces the political challenges of meeting public demands for quality improvements in health care, education, social services, and economic competitiveness, as well as responding to the particular concerns of predominantly francophone Quebec. Canada also aims to develop its diverse energy resources while maintaining its commitment to the environment.
Territorial sea: 12 nm
Exclusive economic zone: 200 nm
Contiguous zone: 24 nm
Continental shelf: 200 nm or to the edge of the continental margin
continuous permafrost in north is a serious obstacle to development; cyclonic storms form east of the Rocky Mountains, a result of the mixing of air masses from the Arctic, Pacific, and North American interior, and produce most of the country's rain and snow east of the mountains
volcanism: the vast majority of volcanoes in Western Canada's Coast Mountains remain dormant
Party to: Air Pollution, Air Pollution-Nitrogen Oxides, Air Pollution-Persistent Organic Pollutants, Air Pollution-Sulfur 85, Air Pollution-Sulfur 94, Antarctic-Environmental Protocol, Antarctic-Marine Living Resources, Antarctic Seals, Antarctic Treaty, Biodiversity, Climate Change, Desertification, Endangered Species, Environmental Modification, Hazardous Wastes, Law of the Sea, Marine Dumping, Ozone Layer Protection, Ship Pollution, Tropical Timber 83, Tropical Timber 94, Wetlands
Signed but not ratified: Air Pollution-Volatile Organic Compounds, Marine Life Conservation
note 1: second-largest country in world (after Russia) and largest in the Americas; strategic location between Russia and US via north polar route; approximately 90% of the population is concentrated within 160 km (100 mi) of the US border
note 2: Canada has more fresh water than any other country and almost 9% of Canadian territory is water; Canada has at least 2 million and possibly over 3 million lakes - that is more than all other countries combined
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