Human Population Growth
Dec 27, 2015
Growth Factors• Increased food production• Increased hygiene (medicine) • Better shelter (engineering)
Predicting Growth• Growth increases needs. We must predict growth to
meet needs.• (schools, hospitals, roads, etc)
Age Structure Diagram• distribution of ages in a population at a certain time• Pyramid shape indicates faster growth
Survivorship curve• the percentage of members of a population that are likely
to survive to any given age.
Infrastructure• Basic facilities and services that support a
community (water, power, sewer, roads, etc)• Usually lacking in rapidly growing underdeveloped
nations.
Water• water for drinking, washing, and sewage may not be
separated.• (no water treatment to clean it)
Fuel• Fuel is needed for warmth, boiling drinking water,
and cooking (wood in underdeveloped places)• Leads to deforestation
Urbanization• More developed nations begin moving into
concentrated cities for work• Leads to traffic pollution, overcrowding, strain on
infrastructure
Managing Growth• Negative effects of rapid growth has led some
nations to limit birth rates (China, India, etc)• Ads, Family planning, Economic incentives, or legal
punishments.