threatens siltation of Panama Canal; air pollution
in urban areas; mining threatens natural resources

Papua New Guinea
rain forest subject to deforestation as a result of
growing commercial demand for tropical timber; pollution from mining
projects; severe drought

Paracel Islands
NA

Paraguay
deforestation; water pollution; inadequate means for waste
disposal pose health risks for many urban residents; loss of wetlands

Peru
deforestation (some the result of illegal logging); overgrazing
of the slopes of the costa and sierra leading to soil erosion;
desertification; air pollution in Lima; pollution of rivers and
coastal waters from municipal and mining wastes

Philippines
uncontrolled deforestation especially in watershed
areas; soil erosion; air and water pollution in major urban centers;
coral reef degradation; increasing pollution of coastal mangrove
swamps that are important fish breeding grounds

Pitcairn Islands
deforestation (only a small portion of the original
forest remains because of burning and clearing for settlement)

Poland
situation has improved since 1989 due to decline in heavy
industry and increased environmental concern by post-Communist
governments; air pollution nonetheless remains serious because of
sulfur dioxide emissions from coal-fired power plants, and the
resulting acid rain has caused forest damage; water pollution from
industrial and municipal sources is also a problem, as is disposal
of hazardous wastes; pollution levels should continue to decrease as
industrial establishments bring their facilities up to EU code, but
at substantial cost to business and the government

Portugal
soil erosion; air pollution caused by industrial and
vehicle emissions; water pollution, especially in coastal areas

Puerto Rico
erosion; occasional drought causing water shortages

Qatar
limited natural fresh water resources are increasing
dependence on large-scale desalination facilities

Romania
soil erosion and degradation; water pollution; air pollution
in south from industrial effluents; contamination of Danube delta
wetlands

Russia
air pollution from heavy industry, emissions of coal-fired
electric plants, and transportation in major cities; industrial,
municipal, and agricultural pollution of inland waterways and
seacoasts; deforestation; soil erosion; soil contamination from
improper application of a