Geography Reference
In-Depth Information
GREENLAND
Arctic Circle
FINLAND
ICELAND
RUSSIA
NORWAY
60
°
60
°
SWEDEN
ESTONIA
LATVIA
LITHUANIA
BELARUS
UKRAINE
MOLDOVA
UNITED KINGDOM
DENMARK
IRELAND
NETH.
POLAND
GER.
BELG.
LUX.
CZ. REP.
AUST.
ATLANTIC
OCEAN
SLVK.
KAZAKHSTAN
SWITZ.
HUNG.
MONGOLIA
ROM.
FRANCE
SLOV.
CRO.
BOS.
MONT.
KOS.
ALB.
SERB.
UZBEKISTAN
BULG.
GEORGIA
KYRGYZSTAN
ITALY
N.
KOREA
S.
KOREA
SPAIN
40
°
MACE.
40
°
ARMENIA
JAPAN
PORTUGAL
TURKMENISTAN
TAJIKISTAN
GREECE
TURKEY
AZERBAIJAN
CHINA
SYRIA
CYPRUS
TUNISIA
AFGHANISTAN
LEBANON
IRAQ
MOROCCO
IRAN
PACIFIC
JORDAN
BHUTAN
ISRAEL
PAKISTAN
NEPAL
KUWAIT
ALGERIA
LIBYA
WESTERN
SAHARA
BAHRAIN
EGYPT
QATAR
BANGLADESH
TAIWAN
Tropic of Cancer
U.A.E.
SAUDI
ARABIA
MYANMAR
(BURMA)
INDIA
20
°
OMAN
MAURITANIA
LAOS
MALI
BURKINA
FASO
NIGER
VIETNAM
SUDAN
ERITREA
OCEAN
CHAD
YEMEN
SENEGAL
GAMBIA
THAILAND
PHILIPPINES
CAMBODIA
DJIBOUTI
GUINEA-BISSAU
GUINEA
SIERRA LEONE
NIGERIA
SRI LANKA
ETHIOPIA
IVORY
COAST
SOUTH
SUDAN
CENTRAL
AFRICAN REP.
BRUNEI
LIBERIA
CAMEROON
SOMALIA
INDIAN
TOGO
MALAYSIA
GHANA
BENIN
UGANDA
KENYA
CONGO
Equator
0
°
RWANDA
SINGAPORE
GABON
EQUATORIAL
GUINEA
THE
CONGO
OCEAN
BURUNDI
PAPUA
NEW
GUINEA
INDONESIA
TANZANIA
COMOROS
EAST TIMOR
ATLANTIC
ANGOLA
MALAWI
ZAMBIA
VANUATU
FIJI
MOÇAMBIQUE
MADAGASCAR
ZIMBABWE
MAURITIUS
20
°
20
°
20
°
20
°
20
°
NAMIBIA
NEW
CALEDONIA
BOTSWANA
Tropic of Capricorn
AUSTRALIA
OCEAN
SWAZILAND
SOUTH
AFRICA
LESOTHO
NEW
ZEALAND
40
°
40
°
40
°
0
°
20
°
40
°
60
°
100
°
120
°
140
°
160
°
60
°
60
°
60
°
60
°
SOUTHERN
OCEAN
Antarctic Circle
and low population growth rates enumerated in this
chapter are dwarfed by continued additions to the popu-
lation in countries where growth rates are still relatively
high, such as India, Indonesia, Bangladesh, Pakistan, and
Nigeria.
One way to easily grasp the growth rate in world
population is to compare the population's rate of growth
to its
doubling time
. Every rate of growth has a dou-
bling time; for example, if you invest $100 at 10 per-
cent, compounded annually (exponentially), it would
take about seven years to double to $200, and then
another seven years to become $400, and then another
seven years to become $800. When the growth rate is
10 percent, therefore, the doubling time is around
seven years.
Two thousand years ago, the world's population was
an estimated 250 million. More than 16 centuries passed
before this total had doubled to 500 million, the estimated
