Vietnam
logging and slash-and-burn agricultural practices contribute
to deforestation and soil degradation; water pollution and
overfishing threaten marine life populations; groundwater
contamination limits potable water supply; growing urban
industrialization and population migration are rapidly degrading
environment in Hanoi and Ho Chi Minh City
Virgin Islands
lack of natural freshwater resources
Wake Island
NA
Wallis and Futuna
deforestation (only small portions of the original
forests remain) largely as a result of the continued use of wood as
the main fuel source; as a consequence of cutting down the forests,
the mountainous terrain of Futuna is particularly prone to erosion;
there are no permanent settlements on Alofi because of the lack of
natural fresh water resources
West Bank
adequacy of fresh water supply; sewage treatment
Western Sahara
sparse water and lack of arable land
World
large areas subject to overpopulation, industrial disasters,
pollution (air, water, acid rain, toxic substances), loss of
vegetation (overgrazing, deforestation, desertification), loss of
wildlife, soil degradation, soil depletion, erosion; global warming
becoming a greater concern
Yemen
limited natural fresh water resources; inadequate supplies of
potable water; overgrazing; soil erosion; desertification
Zambia
air pollution and resulting acid rain in the mineral
extraction and refining region; chemical runoff into watersheds;
poaching seriously threatens rhinoceros, elephant, antelope, and
large cat populations; deforestation; soil erosion; desertification;
lack of adequate water treatment presents human health risks
Zimbabwe
deforestation; soil erosion; land degradation; air and
water pollution; the black rhinoceros herd - once the largest
concentration of the species in the world - has been significantly
reduced by poaching; poor mining practices have led to toxic waste
and heavy metal pollution