Challenges of Pop. Growth & Migration Flashcards
(129 cards)
The Global Compact for Safe, Orderly, and Regular Migration
Seeks to promote national and international policies with respect to migration that follow the rule of law and promote sustainable development and human rights
What is a key challenge of aging populations?
Smaller cohorts of young people coming into the labor force to support elderly populations
Urbanization
Growth in the size of cities
Immigration
International migration into a country
Refugee
A person who is outside their country of origin because of well-founded fears of being persecuted
Internally Displace Persons
People displaced within their own countries
Emigration
International migration out of a country
In 2019, the number of people living as refugees or internally displaced people worldwide was estimated by the United Nations High Commissioner for Refugees (UNHCR) at:
79.5 million
Which of the following is true about population and population growth
- Patterns of population growth differ significantly between more- and less-developed regions of the world
- Fertility rates in the least developed countries are declining but still very high
population change (P) equation
P = (+) births (–) deaths (+) in-migration (–) out-migration
Demography
the study of population change and characteristics
A population can change in size and composition as a result of 3 demographic processes:
- fertility, mortality, and migration
- P (pop. change) = (+) births (–) deaths (+) in-migration (–) out-migration
On the global level, the world’s population grows as the result of
natural increase=the relative balance between births and deaths
zero population growth
- a termination of population growth
- advocated by some seeking a sustainable development advocate
- short term: balancing the components of the population equation to yield zero change in population size during a period of time
- long term: stationary population=constant patterns of childbearing interact with constant mortality and migration to yield zero population change
What is replacement fertility?
Avg in births per woman in low mortality countries?
- when one generation of parents is just replacing itself in the next generation
- About 2.1 children per woman
“momentum” of population growth
The lag from large groups of persons of childbearing age, reflecting earlier eras of high fertility, results in large numbers of births even with replacement-level fertility
Using medium assumptions of future population growth
United Nations Population Division estimates that by 2030, world population lev els will grow to 8.5 billion, and projects a global population of up to 9.7 billion by 2050,
population pyramid
the proportions of persons in different age groups in a population
despite large additions to the world’s population
- the rate of population growth is actually decreasing
- the average annual rate of global population growth reached an all-time high, of about 2.2 percent, between 1962 and 1964.
- since then, the pace of growth of the world’s population has decreased to the current rate of approximately 1.1 percent per year
The rapid population growth that occurred in the post–World War II era reflected
- significant declines in mortality that resulted in large part from public health advances
- and the transfer of medical technology from more to less developed countries.
The total fertility rate
- measures the average number of births per woman of childbearing age and is a strong indicator of overall population growth
- In the period 2015–2020, the total fertility rate for the world is estimated at 2.47 births per woman, representing a significant decline from 4.47 for 1970–1975
- in high-income countries, as defined by the World Bank, has been below replacement since 1975 and is estimated at 1.67 births per woman for 2015–2020
- in middle-income countries the current level of fertility is estimated as 2.35 births per woman
- in low-income countries, the total fertility rate has dropped from 6.68 for 1970–1975 to 4.52 for 2015–2020, a significant decline, but well above replacement level
Global decline in fertility due to
- the aggressive fertility-control campaign in China
- and significant declines in fertility throughout Southeast Asia and in Latin America
- TF in China declined from 4.85 for 1970–1975 to 1.69 for 2015–2020; fertility in India has also declined, from 5.41 for 1970–1975 to 2.24 for 2015–2020
Why is it important today to think about the relationship between population growth and food supply even though the rate at which the global population increases has slowed?
Because of the additional problem of carbon emissions and climate change
When did the world’s population reach one billion people?
At the beginning of the 19th century