utan
soil erosion; limited access to potable water

Bolivia
the clearing of land for agricultural purposes and the
international demand for tropical timber are contributing to
deforestation; soil erosion from overgrazing and poor cultivation
methods (including slash-and-burn agriculture); desertification;
loss of biodiversity; industrial pollution of water supplies used
for drinking and irrigation

Bosnia and Herzegovina
air pollution from metallurgical plants;
sites for disposing of urban waste are limited; water shortages and
destruction of infrastructure because of the 1992-95 civil strife;
deforestation

Botswana
overgrazing; desertification; limited fresh water resources

Bouvet Island
NA

Brazil
deforestation in Amazon Basin destroys the habitat and
endangers a multitude of plant and animal species indigenous to the
area; there is a lucrative illegal wildlife trade; air and water
pollution in Rio de Janeiro, Sao Paulo, and several other large
cities; land degradation and water pollution caused by improper
mining activities; wetland degradation; severe oil spills

British Indian Ocean Territory
NA

British Virgin Islands
limited natural fresh water resources (except
for a few seasonal streams and springs on Tortola, most of the
islands' water supply comes from wells and rainwater catchments)

Brunei
seasonal smoke/haze resulting from forest fires in Indonesia

Bulgaria
air pollution from industrial emissions; rivers polluted
from raw sewage, heavy metals, detergents; deforestation; forest
damage from air pollution and resulting acid rain; soil
contamination from heavy metals from metallurgical plants and
industrial wastes

Burkina Faso
recent droughts and desertification severely affecting
agricultural activities, population distribution, and the economy;
overgrazing; soil degradation; deforestation

Burma
deforestation; industrial pollution of air, soil, and water;
inadequate sanitation and water treatment contribute to disease

Burundi
soil erosion as a result of overgrazing and the expansion of
agriculture into marginal lands; deforestation (little forested land
remains because of uncontrolled cutting of trees for fuel); habitat
loss threatens wildlife populations

Cambodia
illegal logging activities throughout the country and strip
mining for gems in the western region along the border with Thailand
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