Irrigated land: 18,800 sq km (1989 est.)
Environment:
current issues: soil erosion from overgrazing, industrial
development, urbanization, and poor farming practices; soil salinity
rising due to the use of poor quality water; desertification;
clearing for agricultural purposes threatens the natural habitat of
many unique animal and plant species; the Great Barrier Reef off the
northeast coast, the largest coral reef in the world, is threatened
by increased shipping and its popularity as a tourist site; limited
natural fresh water resources
natural hazards: cyclones along the coast; severe droughts
international agreements: party to - Antarctic-Environmental
Protocol, Antarctic Treaty, Biodiversity, Climate Change, Endangered
Species, Environmental Modification, Hazardous Wastes, Law of the
Sea, Marine Dumping, Marine Life Conservation, Nuclear Test Ban,
Ozone Layer Protection, Ship Pollution, Tropical Timber 83,
Wetlands; signed, but not ratified - Desertification
Geographic note: world's smallest continent but sixth-largest country; population concentrated along the eastern and southeastern coasts; regular, tropical, invigorating, sea breeze known as "the Doctor" occurs along the west coast in the summer
People ———
Population: 18,260,863 (July 1996 est.)
Age structure:
0-14 years: 21% (male 2,009,915; female 1,912,605)
15-64 years: 66% (male 6,129,285; female 5,980,315)
65 years and over: 13% (male 967,291; female 1,261,452) (July 1996
est.)
Population growth rate: 0.99% (1996 est.)
Birth rate: 13.99 births/1,000 population (1996 est.)
Death rate: 6.88 deaths/1,000 population (1996 est.)
Net migration rate: 2.74 migrant(s)/1,000 population (1996 est.)