Macedonia
air pollution from metallurgical plants
Madagascar
soil erosion results from deforestation and overgrazing;
desertification; surface water contaminated with raw sewage and
other organic wastes; several endangered species of flora and fauna
unique to the island
Malawi
deforestation; land degradation; water pollution from
agricultural runoff, sewage, industrial wastes; siltation of
spawning grounds endangers fish populations
Malaysia
air pollution from industrial and vehicular emissions;
water pollution from raw sewage; deforestation; smoke/haze from
Indonesian forest fires
Maldives
depletion of freshwater aquifers threatens water supplies;
global warming and sea level rise; coral reef bleaching
Mali
deforestation; soil erosion; desertification; inadequate
supplies of potable water; poaching
Malta
limited natural fresh water resources; increasing reliance on
desalination
Marshall Islands
inadequate supplies of potable water; pollution of
Majuro lagoon from household waste and discharges from fishing
vessels
Mauritania
overgrazing, deforestation, and soil erosion aggravated
by drought are contributing to desertification; limited natural
fresh water resources away from the Senegal, which is the only
perennial river; locust infestation
Mauritius
water pollution, degradation of coral reefs