Saint Pierre and Miquelon recent test drilling for oil in waters around Saint Pierre and Miquelon may bring future development that would impact the environment
Saint Vincent and the Grenadines pollution of coastal waters and shorelines from discharges by pleasure yachts and other effluents; in some areas, pollution is severe enough to make swimming prohibitive
Samoa
soil erosion, deforestation, invasive species, overfishing
San Marino
NA
Sao Tome and Principe
deforestation; soil erosion and exhaustion
Saudi Arabia
desertification; depletion of underground water
resources; the lack of perennial rivers or permanent water bodies
has prompted the development of extensive seawater desalination
facilities; coastal pollution from oil spills
Senegal
wildlife populations threatened by poaching; deforestation;
overgrazing; soil erosion; desertification; overfishing
Serbia
air pollution around Belgrade and other industrial cities;
water pollution from industrial wastes dumped into the Sava which
flows into the Danube
Seychelles
water supply depends on catchments to collect rainwater
Sierra Leone
rapid population growth pressuring the environment;
overharvesting of timber, expansion of cattle grazing, and
slash-and-burn agriculture have resulted in deforestation and soil
exhaustion; civil war depleted natural resources; overfishing