Anguilla
supplies of potable water sometimes cannot meet increasing
demand largely because of poor distribution system
Antarctica
in 1998, NASA satellite data showed that the Antarctic
ozone hole was the largest on record, covering 27 million square
kilometers; researchers in 1997 found that increased ultraviolet
light passing through the hole damages the DNA of icefish, an
Antarctic fish lacking hemoglobin; ozone depletion earlier was shown
to harm one-celled Antarctic marine plants; in 2002, significant
areas of ice shelves disintegrated in response to regional warming
Antigua and Barbuda
water management - a major concern because of
limited natural fresh water resources - is further hampered by the
clearing of trees to increase crop production, causing rainfall to
run off quickly
Arctic Ocean
endangered marine species include walruses and whales;
fragile ecosystem slow to change and slow to recover from
disruptions or damage; thinning polar icepack
Argentina
environmental problems (urban and rural) typical of an
industrializing economy such as deforestation, soil degradation,
desertification, air pollution, and water pollution
note: Argentina is a world leader in setting voluntary greenhouse
gas targets
Armenia
soil pollution from toxic chemicals such as DDT; the energy
crisis of the 1990s led to deforestation when citizens scavenged for
firewood; pollution of Hrazdan (Razdan) and Aras Rivers; the
draining of Sevana Lich (Lake Sevan), a result of its use as a
source for hydropower, threatens drinking water supplies; restart of
Metsamor nuclear power plant in spite of its location in a
seismically active zone
Aruba
NA
Ashmore and Cartier Islands
illegal killing of protected wildlife by
traditional Indonesian fisherman, as well as fishing by
non-traditional Indonesian vessels, are ongoing problems
Atlantic Ocean
endangered marine species include the manatee, seals,
sea lions, turtles, and whales; drift net fishing is hastening the
decline of fish stocks and contributing to international disputes;
municipal sludge pollution off eastern US, southern Brazil, and
eastern Argentina; oil pollution in Caribbean Sea, Gulf of Mexico,
Lake Maracaibo, Mediterranean Sea, and North Sea; industrial waste
and municipal sewage pollution in Baltic Sea, North Sea, and
Mediterranean Sea
Australia
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