[This is a post from Mayra O. Sanchez Gonzalez, a PhD student in the Environmental and Energy Policy program here at Tech. This was an assignment for our Ecological Economics course.]
Is population growth a threat to the environment? My first answer to that question without thinking too much about it would be: Yes, because more people means more depletion of natural resources to support them. I am sure Paul Ehrlich will agree with me, because the Earth’s capacity to support a human population is finite (Ehrlich, 2009). I also think that the organization World Population Balance may consider me one of its members because they believe that overpopulation “is a root cause of resource depletion, species extinction, and rising poverty” (WPB, 2013). To support this statement they present some news, articles and a global population number updated every second. Another organization that might consider me as part of its membership is How many?. This organization states that “population growth is a root cause of many environmental and social problems” (HM?, 2013) and presents a long list of many issues caused by population growth, as well as a second-by-second tally of the number of people in the world. At the moment I write this, we are 7,148,513,537 people on this planet, and by the time I finish writing this line the number will change because we gain 140 new babies every minute. These numbers, statistics and information make me feel overwhelmed and motive me to answer yes to the question that I presented before. However, when I start to think more deeply about the relationship between population and environment, I realize that it is very complex and that my answer cannot be simply Yes or No.
It is a fact that more people consume more natural resources, however not everybody consumes the same way. For instance, people from developed countries consume more resources than people from developing countries. One example of this is the United States. The US has only 5% of the population of the world but it consumes 25% of all world energy (Mazur, 2010). Also, sometimes developed countries go to developing countries to consume or pollute their natural resources because they want to conserve their own or because they have almost exhausted them.
It is not just the amount of natural resources that people consume, it is also about the reasons behind this consumption. These are important because they are shaped by different needs, values and beliefs. People from developing countries might consume resources because they need them to survive, whereas people from developed countries might consume resources not only to survive, but also to have more luxuries or feel more comfortable or to have the newest technological device available, such as cell phones, computers and cars.
I believe that the complex relationship between population and environment should be addressed with different strategies. For instance, we should educate people about the connections between the environment, population, consumption, inequity and human rights, considering different social and cultural contexts. We can emphasize women’s empowerment, so that they can make free decisions and can have free access to services such as contraception. We should also create policies that consider the complexity between the population and the environment. Finally we should support the consumption of local foods, goods and services.
However the most important is to start with ourselves by changing our life styles; it is not enough just to read, discuss, write, and think about these issues if we are not able to change the way we live now. We must think and act in a more sustainable way. We can start by adopting the three R’s strategy in our lives: Reduce, Reuse and Recycle. If we are able to do this in our daily life we are definitely contributing to a sustainable present and future for people and the environment.
Ehrlich, P. R. & Ehrlich, A.H. (2009) The Population Bomb Revised. The electronic journal of sustainable development, Vol. 1(3), pp. 63-71.
Mazur, L. (ed.) (2010) A Pivotal moment. Washington, DC: Island Press.