Western Sahara
phosphates, iron ore
World
the rapid depletion of nonrenewable mineral resources, the
depletion of forest areas and wetlands, the extinction of animal and
plant species, and the deterioration in air and water quality
(especially in some countries of Eastern Europe, the former USSR,
and China) pose serious long-term problems that governments and
peoples are only beginning to address
Yemen
petroleum, fish, rock salt, marble; small deposits of coal,
gold, lead, nickel, and copper; fertile soil in west
Zambia
copper, cobalt, zinc, lead, coal, emeralds, gold, silver,
uranium, hydropower
Zimbabwe
coal, chromium ore, asbestos, gold, nickel, copper, iron
ore, vanadium, lithium, tin, platinum group metals
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Field Listing :: Net migration rate
This entry includes the figure for the difference between the number
of persons entering and leaving a country during the year per 1,000
persons (based on midyear population). An excess of persons entering
the country is referred to as net immigration (e.g., 3.56
migrants/1,000 population); an excess of persons leaving the country
as net emigration (e.g., -9.26 migrants/1,000 population). The net
migration rate indicates the contribution of migration to the
overall level of population change. The net migration rate does not
distinguish between economic migrants, refugees, and other types of
migrants nor does it distinguish between lawful migrants and
undocumented migrants.
Country Comparison to the World
Country
Net migration rate(migrant(s)/1,000 population)