What’s the Right Number of Americans?

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Dot Earth - New York Times blog

July 31, 2009, 8:04 am

What’s the Right Number of Americans?

By Andrew C. Revkin

Joseph Chamie, whom I interviewed early on here about the population “cluster bombs” exploding in many poor places around the world, has turned his focus on the growing population of the United States, and its relation to the hot-button issue of immigration policy.

In an essay on YaleGlobal Online, he posits that immigration policy is, in essence, population policy. He reviews the ample evidence that, no surprise, immigration is the dominant force determining the number of Americans and the balance of young and old. The graph below, produced by Mr. Chamie, shows that without newcomers, who tend to be younger and produce bigger families, the country’s population today would be what it was around 1930.

Without more of a focus on the implications of immigration policy for population, there could be 600 million Americans by 2100, he writes. Depending on whom you talk to, that is a boon or a disaster. Mr. Chamie notes that the relatively enormous thirst for energy, food and other resources from Americans, when compared with that of the average world citizen, gives outsize importance to issues like global warming and to American trends.

Below you can read an excerpt with a few more details. What’s your sense of the optimum number of Americans?

U.S. Immigration Policy Likely to Boost Population

by Joseph Chamie

Over the past several decades, the White House and Congress established various commissions to comprehensively address the future size of America’s population. In general, these high-level advisory bodies concluded that in the long run, no substantial benefits would result from the further growth of the nation’s population. And in particular, they recognized that America cannot grow indefinitely and recommended that the country welcome and plan for a gradual stabilization of its population.

Also, they concluded that there is hardly any problem confronting America whose solution would be easier with a larger population. Moving toward population stabilization would contribute significantly to America’s ability to solve its domestic problems as well as many of those abroad, especially energy and resource consumption, climate change and environmental sustainability. Moreover, without U.S. leadership as demonstrated by domestic efforts to stabilize its population and thereby mitigate further damage to the environment, other nations would be reluctant to adopt policies and practices to stabilize their populations and work toward developmental and ecological sustainability. Read more…

http://dotearth.blogs.nytimes.com/2009/07/...r-of-americans/

_______________________________________________________________________

YaleGlobal Online

Demographic trends, often ignored by policymakers, are clearly linked with the US’ immigration policy. If Congress and the Obama administration plan to implement an effective immigration policy, they need to understand how over time it will affect the country’s population figure. As demographer Joseph Chamie notes, policy makers should start by asking how large should the US’ population be. Answering this question will determine what should be the rate of immigration since immigration has a significant multiplier effect on population growth. The US is currently the most populous developed nation in the world and at current rates, it could overtake the European Union by the end of the century. Indeed, immigration policy affects not only domestic issues like social security and health care, which can have international implications as a result of government debt levels, but also affects the use of resources and carbon emission linked with global climate change. Imagine how high the US’ emissions could grow if its population were to double while retaining the current per capita carbon footprint? Until such questions are answered, immigration is unlikely to abate. – YaleGlobal

US Immigration Policy Likely to Boost Population

Growth-driven immigration policy risks bringing unfavorable socio-economic and environmental consequences

Joseph Chamie

YaleGlobal, 30 July 2009

Immigrants at the door: Unless the US curbs rate of immigration, it will have a population larger than Europe

NEW YORK: As the new US Administration and Congress begin to tackle immigration reform they will again be faced with the weighty question of how large should America’s population be in the future. Should America’s population continue to grow indefinitely, perhaps doubling to 600 million by the end of the century? Clearly, any answer to this vital demographic question has serious and far-reaching economic, political, social and environmental consequences for America as well as for the international community of nations.

Some of America’s leading policymakers uncritically accept that an expanding population with increased immigration is good for America, ensuring its prosperity, power and harmonious relations with other nations with little if any adverse effects. Most others simply choose to ignore or equivocate on this fundamental demographic question, as has so often been done in past.

Leaders in the Senate and Administration will likely focus their attention on narrow aspects of immigration reform, as they did in the recent report of the Independent Task Force on US Immigration Policy, which – except for the paper it was printed on – ignored environmental implications of the policy. However, decisions and policies on US immigration, including future levels, priorities, high-skilled migration and illegal immigration, effectively load the demographic dice for America’s future.

Figure 1. US Population With and Without Immigration: 1776-2009.

Contrary to popular thought, the dominant force fueling America’s demographic growth is not natural increase, but immigration. This is because immigrants not only add their own numbers to the nation’s overall population, but also contribute a disproportionate number of births whose effects are compounded over time. A couple of examples help to illustrate this important point.

The first example considers the contribution of immigration to America’s population growth since its founding in 1776. If international migration had ceased after the signing of the Declaration of Independence, America’s population would have likely been no more than 127 million today and perhaps closer to 100 million, far short of its current size of 307 million (Figure 1). Over this 233-year period, migration’s contribution (migrants and their descendents) is dominant, accounting for at least 60 percent of America’s population growth.

Figure 2. US Population With and Without Immigration: 2009-2050.

The second example illustrates immigration’s impact on America’s population from a future perspective. By mid-century the US population is projected to reach 439 million, assuming current annual net migration of about 1.3 million increasing gradually to 2 million (Figure 2). However, if further immigration were to cease, the US population in 2050 would likely be about 100 million less, i.e., roughly 345 million. Again, the major force behind the future growth of America’s population, at least 70 percent in this instance, is the addition of immigrants and their descendants.

Beyond its major impact on the size of America’s population, immigration also has a significant effect on the country’s age structure. Notably, immigration slows down population ageing. For example, the proportion of America’s population aged 65 years or older in 2050 is projected to be about 20 percent with immigration versus 25 percent without immigration. Obviously, immigration trends have non-trivial implications for the future financial well-being of social security and health care systems for the elderly. However, immigration is not a solution to population ageing insofar as the immigrants themselves also age and eventually retire.

Immigration is also altering America’s ethnic composition and culture, i.e., less European and more Latin American, Asian and African. Throughout the 19th century and most of the 20th, the US foreign born population was predominately from European countries, e.g., Germany, Ireland, Italy and the United Kingdom. Today the top five countries are no longer of European origin but are Mexico, China, Philippines, India and Vietnam, with Mexico accounting for a third of the foreign born. As a result, America will increasingly look, sound and act differently over the coming decades – which is neither good nor bad but different. By mid-century, for example, one out five Americans is expected to be an immigrant - higher than ever before - with Hispanics accounting for 30 percent of the nation’s population.

As a result of continuing high rates of immigration and fertility levels at replacement, America is the most populous developed country, representing nearly five percent of the world population. In addition, America’s demographic standing relative to the billion-plus club of China and India remains more or less unchanged for the foreseeable future. However, its demographic standing among developed nations as a whole is expected to increase from a quarter today to a third by 2050. Moreover, with respect to the European Union (27), America is projected to achieve parity with it in roughly 50 years and exceed EU’s population well before the close of the century.

So then, what is the role of international migration in America’s future? With current demographic trends likely to continue for some time, immigration can be expected to continue to play a major role in the future size, age-structure and ethnic composition of America.

However, it is important to keep in mind that while these population projections for America’s future appear likely, they are not necessarily inevitable. Demographic trends may change radically due to behavioral changes and unanticipated events impacting fertility and mortality as well as changes in America’s immigration practices and policies.

These projections raise the fundamental question of how much larger should America’s population be. Over the past several decades, the White House and Congress established various commissions to comprehensively address the future size of America’s population. In general, these high-level advisory bodies concluded that in the long run, no substantial benefits would result from the further growth of the nation’s population. And in particular, they recognized that America cannot grow indefinitely and recommended that the country welcome and plan for a gradual stabilization of its population.

Also, they concluded that there is hardly any problem confronting America whose solution would be easier with a larger population. Moving toward population stabilization would contribute significantly to America’s ability to solve its domestic problems as well as many of those abroad, especially energy and resource consumption, climate change and environmental sustainability. Moreover, without US leadership as demonstrated by domestic efforts to stabilize its population and thereby mitigate further damage to the environment, other nations would be reluctant to adopt policies and practices to stabilize their populations and work toward developmental and ecological sustainability.

As the new US Administration and Congress begin to deal with immigration, they could decide to alter the direction of the country’s current pro-growth immigration policies and plan for a gradual stabilization of America’s population, as the various advisory commissions have indeed recommended. This outcome would be environmentally beneficial and advantageous to America’s long term interests.

Given the current economic and political climate, it seems doubtful that the US Congress will be able to address immigration reform any time soon. However, when they do begin debating US immigration policies, it would be wise to consider demographic realities, future population projections and likely environmental costs and not simply embrace the traditional pro-growth ethic that “more is better.” Congress and the Administration have an opportunity to address immigration reform in the broader context of America’s population. If they choose to do otherwise, expect another 100 million Americans to be joining us very soon.

Joseph Chamie, former director of the United Nations Population Division, is director of research at the Center for Migration Studies.

http://yaleglobal.yale.edu/article.print?id=12620

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