NationMaster - Sierra Leonean Environment statistics

Areas under protection	126	[126th of 146]
Carbon efficiency	106 CO2 emissions/$ GDP	[106th of 141]
CO2 Emissions	147	[147th of 178]
Current issues 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
Ecological footprint	139	[139th of 141]
Endangered species protection	104%	[104th of 141]
International agreements > Signed but not ratified Environmental Modification
Known breeding bird species	100	[100th of 146]
Known mammal species	62	[62nd of 145]
Marine fish catch	68 tons	[68th of 141]
NOx emissions per populated area	34 thousand metric tons/squ	[34th of 141]
Pollution > Carbon dioxide 1999	156	[156th of 199]
Protected area	125	[125th of 147]
SO2 emissions per populated area	29 thousand metric tons/squ	[29th of 141]
Threatened species	71	[71st of 158]
Threatened species > Mammal	97	[97th of 160]
Water > Availability	25 thousand cubic metres	[25th of 141]
Water > Phosphorus concentration	59 mls/litre	[59th of 141]
Wetlands of intl importance > Area	42 thousand hectares	[42nd of 112]
Wildness	128%	[128th of 141]

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SOURCES: Protected Areas under IUCN management categories I - VI (1992-2003); Carbon economic efficiency (CO2 emissions per dollar GDP)
Units: Metric Tons/US Dollar GDP; CO2: Total Emissions (excluding land-use) Units: thousand metric tonnes of carbon dioxide; This entry lists the most pressing and important environmental problems. The following terms and abbreviations are used throughout the entry: ; Ecological footprint per capita
Units: Hectares per Person; Percent of CITES reporting requirements met
Units: Percent of Requirements Met
Units: Countries that have not ratified the CITES convention are recorded as having zero percent of their requirements met.; The various international environmental agreements which a country has signed but not ratified. Agreements are listed in alphabetical order by the abbreviated form of the full name. ; Known breeding bird mammal species (1992-2002).; Known mammal species (1992-2002).; Total marine fish catch
Units: Metric Tons; NOx emissions per populated land area
Units: 1000 Metric Tons/Sq. Km. of Populated Land Area
Units: We obtained the total emissions for each country by summarizing emissions data, originally available as a grid map with 1 degree x 1 degree cells. Air pollution is generally greatest in densely populated areas. To take this into account, we used the Gridded Population of the World dataset available from CIESIN and calculated the total land area in each country inhabited with a population density of greater than 5 persons per sq. km. We then used this land area as a denominator for the emissions data.; 1999 total CO2 emissions from fossil-fuel burning, cement production, and gas flaring. Emissions are expressed in thousand metric tons of carbon (not CO2).; Environmentally protected area (1997); SO2 emissions per populated land area
Units: 1000 Metric Tons/Sq. Km. of Populated Land Area
Units: We obtained the total emissions for each country by summarizing emissions data, originally available as a grid map with 1 degree x 1 degree cells. Air pollution is generally greatest in densely populated areas. To take this into account, we used the Gridded Population of the World dataset available from CIESIN and calculated the total land area in each country inhabited with a population density of greater than 5 persons per sq. km. We then used this land area as a denominator for the emissions data.; Number of Threatened Species (1990-99); Number of threatened mammal species (1997); Water availability per capita (1961-1990 (avg.))
Units: Thousands Cubic Meters/Person
Units: This variable measures internal renewable water (average annual surface runoff and groundwater recharge generated from endogenous precipitation); Phosphorus concentration
Units: Milligrams/Liter
Units: The country values represent averages of the station-level values for the three year time period 1994-96, except where data were only available for an earlier time period (1988-1993). The number of stations per country varies depending on country size; number of bodies of water; and level of participation in the GEMS monitoring system. The data from "The Wellbeing of Nations" included a smaller subset of stations representing outfalls of major watersheds. An analysis of a sample of countries with numerous stations found that the data for stations in the subset is broadly comparable to the data for all GEMS stations in those countries.; Wetlands of international importance 2002; Percent of land area having very low anthropogenic impact
Units: Percent of Land Area
Units: Global grids for population (GPW), land use (USGS AVHRR based classification from EROS data center), VMAP roads, VMAP railways, VMAP coastlines, VMAP major rivers and the stable lights data were all scored for "wildness". The scores were aggregated and normalized.

ALTERNATIVE NAMES: Sierra Leone, Republic of Sierra Leone

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