By the end of this section, you should be able to: Explain demographic measurements like fertility and mortality rates Describe a variety of demographic theories, such as Malthusian, cornucopian, zero population growth, and demographic transition theories Evaluate current population trends and patterns Differentiate between an internally displaced person, an asylum-seeker, and a refugee Figure 20.3 At nearly 8 billion, Earth’s population is always on the move, but the methods vary. As you see here, bicycles, motorcycles, and scooters are more common in Vietnam than they are in many U.S. cities. And in some countries, masks were common well before COVID-19. (Credit: Esin Üstün/flickr) Between 2011 and 2012, we reached a population milestone of 7 billion humans on the earth’s surface. The rapidity with which this happened demonstrated an exponential increase from the time it took to grow from 5 billion to 6 billion people. In short, the planet is filling up. We'll have 8 billion people in this decade. While the population is increasing overall, there are certain countries and regions where growth is slowing. Relocation and migration also change the makeup and quantity of people in an area. In order to properly understand these dynamics and make decisions regarding them, we turn to demography, or the study of populations. Three critical aspects of demography are fertility, mortality, and migration. The fertility rate of a society is a measure noting the number of children born. The fertility number is generally lower than the fecundity number, which measures the potential number of children that could be born to women of childbearing age. Sociologists measure fertility using the crude birthrate (the number of live births per 1,000 people per year). Just as fertility measures childbearing, the mortality rate is a measure of the number of people who die. The crude death rate is a number derived from the number of deaths per 1,000 people per year. When analyzed together, fertility and mortality rates help researchers understand the overall growth occurring in a population. Another key element in studying populations is the movement of people into and out of an area. Migration may take the form of immigration, which describes movement into an area to take up permanent residence, or emigration, which refers to movement out of an area to another place of permanent residence. Migration might be voluntary (as when college students study abroad), involuntary (as when Syrians evacuated war-torn areas), or forced (as when many Native American tribes were removed from the lands they’d lived in for generations). Big Picture Mass Migration Crises Figure 20.4 This March 2021 image of dozens of children in plastic-lined holding areas was one of a group of photos that sparked public outcry in the early days of the Biden administration, years after similar scenes and situations in the 2014 and 2018 border crises. (Credit: Defense Visual Information Distribution Service) At least once during each of the last three Presidential administrations, the United States has faced a crisis at its southern border. While images of children in crowded holding areas, covered in piles of shiny plastic emergency blankets, were often associated with the Trump Presidency, Presidents Obama and Biden saw children in the same conditions. The holding facilities, described as cages by some and often referred to as “perreras” (dog kennels) or “hieleras” (ice boxes) by the migrating people, are meant to be temporary stopovers while people await hearings or related refugee processes. But during a number of occasions, the number of people crossing the border was so large – including, at times, tens of thousands of children – that the system became overwhelmed. The conditions are deplorable. The outcomes are uncertain. But the people cross the border anyway. How did we get here? Bipartisan legislation passed in 2008 guarantees unaccompanied minors a hearing with an immigration judge where they may request asylum based on a “credible” fear of persecution or torture (U.S. Congress 2008). In some cases, these children are looking for relatives and can be placed with family while awaiting a hearing on their immigration status; in other cases, they become involved with the foster system or are placed in of the 170 housing facilities run by nonprofit or for-profit groups. Finally, for people who turn 18 while still in the process, they may be transferred to detention centers, sometimes on their birthday (Montoya-Galvez 2021). Many people in America were either accepting or unaware of these policies and situations until crises occurred in 2014 and 2018-19. At those points of incredible influxes of migrant children, border control, refugee services, and advocacy organizations were overwhelmed by the surge. Both the Obama and Trump administrations pushed for changes in laws or guidelines for enforcement (Gomez 2014 and Kanno-Youngs 2020). The Obama administration sought to make the decision process faster. In 2014, over 50,000 unaccompanied minors were taken into custody, creating the backlog discussed above. The Trump administration sought to discourage immigration through policies such as separating parents and children who arrived together. The policy was decried by members of Trump's own party, as well as many other organizations, and was eventually dealt a series of legal blows before the President reversed it. Later investigations determined that hundreds, if not thousands, of children remained separated from their parents for extended periods of time (Spagat 2019). While the situations at the border are extremely threatening to children's health and safety, people and policymakers in the United States are divided on how to address the situation. In many cases, these children are fleeing various kinds of violence and extreme poverty. The U.S. government has repeatedly indicated that the best way to avoid these crises is to address those conditions in the migrants' home countries. But even with financial aid for those nations and pressure on their governments to crack down on illegal activity, it is unlikely that the situation will change quickly or consistently. The Biden administration may not be the last to face a surge of immigrant children at its border. A functional perspective theorist might focus on the dysfunctions caused by the sudden influx of underage asylum seekers, while a conflict perspective theorist might look at the way social stratification influences how the members of a developed country are treating the lower-status migrants from less-developed countries in Latin America. An interactionist theorist might see significance in the attitude of those protesting the presence of migrant children. Which theoretical perspective makes the most sense to you?

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