Maritime claims: territorial sea: 12 nm contiguous zone: 24 nm exclusive economic zone: 200 nm continental shelf: 200 nm or to the edge of the continental margin
Climate:
varies from temperate in south to subarctic and arctic in north
Terrain:
mostly plains with mountains in west and lowlands in southeast
Elevation extremes:
lowest point: Atlantic Ocean 0 m
highest point: Mount Logan 5,959 m
Natural resources:
iron ore, nickel, zinc, copper, gold, lead, molybdenum, potash,
diamonds, silver, fish, timber, wildlife, coal, petroleum, natural
gas, hydropower
Land use:
arable land: 4.57%
permanent crops: 0.65%
other: 94.78% (2005)
Irrigated land:
7,850 sq km (2003)
Natural hazards:
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
Environment - current issues:
air pollution and resulting acid rain severely affecting lakes and
damaging forests; metal smelting, coal-burning utilities, and
vehicle emissions impacting on agricultural and forest productivity;
ocean waters becoming contaminated due to agricultural, industrial,
mining, and forestry activities
Environment - international agreements:
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, Climate Change-Kyoto Protocol,
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