Geography Reference
In-Depth Information
Arctic Circle
RUSSIA
60°
60°
EUROPE
40°
40°
JAPAN
ATLANTIC
OCEAN
CHINA
PACIFIC
Nile
Valley
Sahara
Tropic of Cancer
20°
20°
INDIA
OCEAN
NIGERIA
INDIAN
Equator
OCEAN
Java
ATLANTIC
20°
20°
20°
20°
Tropic of Capricorn
OCEAN
40°
40°
40°
20°
40°
60°
100°
120°
140°
160°
60°
60°
60°
60°
SOUTHERN
OCEAN
Antarctic Circle
WHY DO POPULATIONS RISE OR FALL
IN PARTICULAR PLACES?
In the late 1960s, alarms sounded throughout the
world with the publication of Paul Ehrlich's The Popula-
tion Bomb . Ehrlich and others warned that the world's
population was increasing too quickly—and was outpac-
ing our food production! We can trace alarms over the
burgeoning world population back to 1798, when British
economist Thomas Malthus published An Essay on the
Principles of Population . In this work Malthus warned that
As we discussed in the fi eld note at the beginning of this
chapter, the populations of China and India account for 40
percent of the world currently, and India is predicted to
outpace China's population in the 2030s. How will Figure 2.5
look different 50 years from now? If you were updating this
textbook in 50 years, where would the largest population
clusters in the world be?
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