nds; serious air and water pollution in
the national capital and urban centers along US-Mexico border; land
subsidence in Valley of Mexico caused by groundwater depletion
note: the government considers the lack of clean water and
deforestation national security issues

Micronesia, Federated States of
overfishing, climate change,
pollution

Midway Islands
NA

Moldova
heavy use of agricultural chemicals, including banned
pesticides such as DDT, has contaminated soil and groundwater;
extensive soil erosion from poor farming methods

Monaco
NA

Mongolia
limited natural fresh water resources in some areas; the
policies of former Communist regimes promoted rapid urbanization and
industrial growth that had negative effects on the environment; the
burning of soft coal in power plants and the lack of enforcement of
environmental laws severely polluted the air in Ulaanbaatar;
deforestation, overgrazing, and the converting of virgin land to
agricultural production increased soil erosion from wind and rain;
desertification and mining activities had a deleterious effect on
the environment

Montenegro
pollution of coastal waters from sewage outlets,
especially in tourist-related areas such as Kotor

Montserrat
land erosion occurs on slopes that have been cleared for
cultivation

Morocco
land degradation/desertification (soil erosion resulting
from farming of marginal areas, overgrazing, destruction of
vegetation); water supplies contaminated by raw sewage; siltation of
reservoirs; oil pollution of coastal waters

Mozambique
a long civil war and recurrent drought in the hinterlands
have resulted in increased migration of the population to urban and
coastal areas with adverse environmental consequences;
desertification; pollution of surface and coastal waters; elephant
poaching for ivory is a problem

Namibia
very limited natural fresh water resources; desertification;
wildlife poaching; land degradation has led to few conservation areas

Nauru
limited natural fresh water resources, roof storage tanks
collect rainwater, but mostly dependent on a single, aging
desalination plant; intensive phosphate mining during the past 90
years - mainly by a UK, Australia, and NZ consortium - has left the
central 90% of Nauru a wasteland and threatens limited remaining
land resources

Navassa Island
NA

Nepal
deforestation (overuse of