12 July 2010

Population bomb or consumption explosion?

new economics foundation

Victoria Johnson
Senior researcher and Head of Climate Change and Energy

The Royal Society's inquiry into population growth is welcome, but let's not forget that the real pressures on our planet come from overconsumption.

Today, on World Population Day, the Royal Society has launched two year inquiry into human population growth and how it might affect social and economic development.

Contrary to what some might have you believe, discussing population isn’t a taboo. Rather the debate is heavily polarised between those who champion (directly or indirectly) coercive population control and those who believe following good, gender-aware development and poverty reduction is all that is necessary.

We welcome the study and hope that it will place discussions on population in the broader context of social and economic drivers of population growth. We plan to feed into the inquiry, particularly in relation to our recent report: Consumption Explosion Third UK Interdependence Day report.

In Consumption Explosion, published on World Ecological Debt day last year, we argued the recent revived focus on global population as an environmental issue is a critical distraction from tackling overconsumption on wealth countries. In other words, it isn’t that population is the problem, but rather the enormous disparities between over consumers in the global north and under consumers in the global south – or to put it another way, wealth.

And there is no exponential population growth. Approximately 50 years ago, the average woman had between 5 and 6 children. Now she has 2.6 – closing fast on the level of 2.1 at which populations stablise. Go below this rate, and over time levels begin to decline. This, too, is in the absence of tough government birth-control policies.

Birth rates are a function of poverty, and are directly correlated to a number of factors: lack of basic education (particularly for girls); lack of access to reproductive health services; high infant/child mortality rates; and dependence on adult children for income (not least migrants). So, the only effective and socially acceptable path to influence population dynamics is through eradicating poverty and reducing inequality, and that given, environmental realities, this is hard-wired to ending rich-world consumption. And, what are the alternatives?

Thirty years since China implemented its one-child family policy, research now suggests there were a number of unforeseen and unintended consequence of such coercive population control – especially in contrast to simply following good, gender-aware development and poverty reduction.

Using  the ‘ecological footprint’ metric, the number of hectares required to provide each of us with food, clothing and other resources reveals just how unequal consumption is across the globe. The average American takes 9.5 hectares, while Australians required 7.8, Britons 5.3, Germans 4.2, Chinese 2.1, and Indians and most Africans (where the majority of the future population growth will take place) 1.0 or less.

While fast-rising populations can sometimes create serious local environmental crises, viewed at the global level, economists predict the world’s economy will grow by 400 per cent by 2050. If so, only a tenth of that growth will be due to rising human numbers.

As Fred Pearce (author of Peoplequake: Mass migration, ageing nations and the coming population crash) writes:

Yes, some of those extra people will become rich. But it is the height of hubris to downgrade the culpability of our own environmental footprint because future generation of poor people might one day get to be as rich and destructive as we are. Every time we talk about too many babies in Africa or India, we are denying that simple fact.

The current economic system, which creates and depends on unstable consumption, has greatly increased income and asset inequality within and between nations. It has also degraded the environment, resulting in climate change, and failed substantially to reduce global poverty.

So overall, a new low-carbon, high well-being economic system that redefines prosperity and a redistribution of wealth will be central to a ‘demographic transition’ that can defuse any population explosion.

Photo by HKPuiPui27 via Flickr

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Comments

13 Jul 2010 at 11:22

utility73

Why the new trend (this article, monbiot, etc.) of playing off the arguments of overconsumption against overpopulation? Both are big problems. Right now overconsumption might be the bigger problem but it might be overtaken fast by overpopulaton, because if we really want to minimize inequality the more people there are the less you can provide per capita in this finite system called earth. So while we definitely should act against overconsumption we must not neglect the long term problem of overpopulation.

13 Jul 2010 at 12:03

Oxford Kevin

Utility73. Because as they make perfectly clear in the article above population growth is slowing and within 40 years could easily become negative. So no need for coercive population control.

13 Jul 2010 at 12:05

Oxford Kevin

Utility73. Because as they make perfectly clear in the article above population growth is slowing and within 40 years could easily become negative. So no need for any dramatic popuplation solutions.

14 Jul 2010 at 08:04

Matthew Watkinson

Does this article really suggest there is no exponential population growth? I am staggered. Perhaps those at the NEF are not aware that all compound growth is exponential. Doesn't matter whether it's 100% every ten years or 0.05% ever 20, all compound interest is exponential. "The greatest shortcoming of the human race is our inability to understand the exponential function" Dr Albert Bartlett A quick look at a population graph will quickly demonstrate the exponential nature of population growth despite falling fertility rates. 9 billion in 2050 isn't a limit either. According to the UN, in 2050 the world population will still be growing by 30 million people a year (0.34% per year, which would still yield exponential growth if it stabilised at this figure), which is hardly negative. Anybody any idea how biologically sensible it would be for a population growth rate to fall below replacement by the way? And anybody ever considered that it is the prospect of dwindling resources that is squeezing the desire for children, as per Virginia Deane Abernethy's Economic Opportunity Hypothesis? Take the UK for example. We can be listed as an example of affluence leading to reducing fertility, but how many people have considered the role of the economic treadmill in the process. Raising children in the UK often requires 2 working parents who have invested a lot of time in their own education. i.e. the need to capture and maintain enough wealth to raise children (approx £170,000 per child at the moment) plus support the superficial material wealth necessary to show potential and current partners that you have what it takes to raise those children (is wasteful "conspicuous consumption" is our peacock's tail?) are squeezing the female fertility window and the amount of time we can dedicate to the reproduction process. We are being turned into super K-strategists, and may yet become extinct super K-strategists if we continue to champion negative growth rates. Capitalism is making child rearing so costly that the affluent may end up on a trajectory towards extinction, and apparently that's a sensible biological strategy (?!), that we need to peddle out to the rest of the world. Are we really the first species in the history of life on earth to be intrinsically self limiting... “There is no exception to the rule that every organic being naturally increases at so high a rate, that, if not destroyed, the earth would soon be covered by the progeny of a single pair.” Charles Darwin ...or was Malthus right about the role of checks (such as resource restrictions like we currently face) after all? “Population, ***when unchecked***, increases in a geometrical ratio. Subsistence increases only in an arithmetical ratio. A slight acquaintance with numbers will shew the immensity of the first power in comparison of the second.” Thomas Malthus

08 Oct 2010 at 21:12

Paul Harman

if we really want to reduce inequality the more people there are the less you can provide per capita in this finite system called earth.