Abstract
This study examines the temporal stability of the population/environment relationship. We analyze panel data from 1960 to 2005 to determine whether the national-level association between population and carbon dioxide emissions has remained stable, declined, or intensified in recent decades. Results indicate that population size has a large and stable positive association with anthropogenic carbon dioxide emissions. The findings of temporal stability generally hold for both developed countries and less-developed countries. The authors conclude that population, in tandem with other social drivers, remains an important consideration for research that addresses the human dimensions of global environmental change.
Notes
As suggested by an anonymous reviewer, projections for population and emissions are available. While we recognize that other studies include such future projected estimates, we elect to exclude them since projections are unavailable for our control variables, and projections could introduce unknown error into the model estimates.
However, we acknowledge that such restrictions lead to the exclusion of many other nations from the analyses. Nonetheless, the representation of nations within and the temporal depth of our study are both strong relative to most cross-national investigations in the social sciences.
With Stata, the fixed effects are estimated with the “within estimator”, which involves a mean deviation algorithm for the dependent variable and each time-varying independent variable.
CAIT provides a comprehensive and comparable database of greenhouse gas emissions data (including all major sources and sinks) and other climate-relevant indicators. In order to provide the most complete and accurate dataset, CAIT compiles data from three sources—the Carbon Dioxide Information Analysis Center, the International Energy Agency, and the Energy Information Administration.
To maintain the relatively large sample sizes and balanced character of the panel datasets, we only include time-variant predictors with adequate available data that are consistently shown in prior research to impact total anthropogenic carbon dioxide emissions. However, in sensitivity analyses available upon request, we also include measures of manufacturing as percent GDP, services as percent GDP, level of democratization and state strength, environmental international nongovernmental presence, foreign direct investment in the manufacturing sector, domestic investment, population age structure, and population density. The latter was suggested by an anonymous reviewer. While the inclusion of these predictors greatly reduces the overall sample sizes and leads to unbalanced panel datasets, the results of the sensitivity analyses are consistent with the reported findings.
In unreported analyses, we estimate the models for datasets for nations falling in each income quartile (i.e., four unique datasets). We also estimate additional models for three unique datasets of high income, middle income, and low income nations. The results of all additional model estimates for these unique datasets are entirely consistent with the findings reported here, meaning the coefficients for all interactions between time and population are non-significant. Further, diagnostics indicate that the datasets used in the reported analyses or unreported sensitivity analyses do not include any overly influential cases. We thank both anonymous reviewers for suggesting we consider such sensitivity analyses.
Results of xtserial tests in Stata indicate the presence of autocorrelation. Thus, in sensitivity analyses available upon request we added an AR(1) correction and re-estimated all FE models with the “xtregar” suite of commands. The results are substantively identical to the reported findings. Given the consistency in results with and without the correction, we elect to report the models without the AR(1) since the models with the correction involve dropping the observations for the first time point.
References
Allison, P. (2009). Fixed effects regression models. Thousand Oaks: Sage.
Brady, D., Kaya, Y., & Beckfield, J. (2007). Reassessing the effect of economic growth on well-being in less-developed countries, 1980–2003. Studies in Comparative International Development, 42, 1–35.
Burns, T., Murray, D., Kick, E., & Murray, D. (1994). Demography, development, and deforestation in a world-system perspective. International Journal of Comparative Sociology, 35, 221–239.
Cameron, C., & Trivedi, P. (2009). Microeconometrics using stata. College Station: Stata Press.
Campbell, C. J. (2004). Petroleum and people. Population and Environment, 24(2), 193–207.
Christianson, G. (1999). Greenhouse: The 200 year story of global warming. New York: Walker and Company.
Clark, B., Jorgenson, A. K., & Kentor, J. (2010). Militarization and energy consumption: A test of treadmill of destruction theory in comparative perspective. International Journal of Sociology. (in press).
Clark, B., & York, R. (2005). Carbon metabolism: Global capitalism, climate change, and the biospheric rift. Theory and Society, 34(4), 391–428.
Dietz, T., Rosa, E. A., & York, R. (2007). Driving the human ecological footprint. Frontiers in Ecology and the Environment, 5, 13–18.
Dyson, T. (2005). On development, demography and climate change: The end of the world as we know it?” Population and Environment, 27(2), 117–149.
Ehrhardt-Martinez, K. (1998). Social determinants of deforestation in developing countries: A cross-national study. Social Forces, 77, 567–586.
Entwisle, B., Malanson, G., Rindfuss, R., & Walsh, S. (2008). An agent-based model of household dynamics and land use change. Journal of Land Use Science, 3, 73–93.
Entwisle, B., & Stern, P. (Eds.). (2005). Population, land use, and environment: Research directions. Washington, D.C.: The National Academies Press.
Foster, J. B. (2009). The ecological revolution. New York: Monthly Review Press.
Gaffin, S. R., & O’Neill, B. C. (1997). Population and global warming with and without CO2 Targets. Population and Environment, 18(4), 389–413.
Gould, K. A., Pellow, D. N., & Schnaiberg, A. (2008). The treadmill of production: Injustice and unsustainability in the global economy. Boulder: Paradigm Press.
Hamilton, L. (1992). Regression with Graphics. Belmont, CA: Duxbury Press.
Harte, J. (2007). Human population as a dynamic factor in environmental degradation. Population and Environment, 28, 223–236.
Hsiao, C. (2003). Analysis of panel data (2nd ed.). New York: Cambridge University Press.
Hunter, L. (2001). The environmental implications of population dynamics. Santa Monica: RAND.
Intergovernmental Panel on Climate Change (IPCC). (2007). Climate change 2007: The physical science basis. Cambridge: Cambridge University Press.
Jorgenson, A. K. (2006). Global warming and the neglected greenhouse gas: A cross-national study of methane emissions intensity, 1995. Social Forces, 84, 1777–1796.
Jorgenson, A. K. (2009a). The sociology of unequal exchange in ecological context: A panel study of lower income countries, 1975–2000. Sociological Forum, 24, 22–46.
Jorgenson, A. K. (2009b). The transnational organization of production, the scale of degradation, and ecoefficiency: A study of carbon dioxide emissions in less-developed countries. Human Ecology Review, 16, 64–74.
Jorgenson, A. K., & Clark, B. (2009). The economy, military, and ecologically unequal relationships in comparative perspective: A panel study of the ecological footprints of nations, 1975–2000. Social Problems, 56, 621–646.
Jorgenson, A. K., & Kick, E. (Eds.). (2006). Globalization and the Environment. Leiden: Brill Academic Press.
Jorgenson, A. K., & Kuykendall, K. (2008). Globalization, foreign investment dependence, and agriculture production: A cross-national study of pesticide and fertilizer use intensity in less-developed countries, 1990–2000. Social Forces, 87, 529–560.
Jorgenson, A. K., Rice, J., & Clark, B. (2010). Cities, slums, and energy consumption in less-developed countries, 1990–2005. Organization & Environment. ((in press).
Kennedy, P. (2008). A guide to econometrics (6th ed.). Malden: Blackwell Publishing.
Lie, J., Ouyang, Z., Tan, Y., Yang, J., & Zhang, H. (1999). Changes in human population structure: implications for biodiversity conservation. Population and Environment, 1, 45–58.
Mol, A. (2001). Globalization and environmental reform. Cambridge: MIT Press.
Molotch, H. (1976). The city as a growth machine: Toward a political economy of place. American Journal of Sociology, 82(2), 309–332.
Murtaugh, P. A., & Schlax, M. G. (2009). Reproduction and the carbon legacies of individuals. Global Environmental Change, 19, 14–20.
O’Neill, B. C., Landis MacKellar, F., & Lutz, W. (2001). Population and climate change. Cambridge: Cambridge University Press.
Rice, J. (2007). Ecological unequal exchange: International trade and uneven utilization of environmental space in the world system. Social Forces, 85, 1369–1392.
Roberts, J. T., & Parks, B. (2007). A climate of injustice: Global inequality, north–south politics, and climate policy. Cambridge: MIT Press.
Rosa, E. A., Diekmann, A., Dietz, T., & Jaeger, C. (Eds.). (2009). Human footprints on the global environment: Threats to sustainability. Cambridge: MIT Press.
Rosa, E. A., York, R., & Dietz, T. (2004). Tracking the anthropogenic drivers of ecological impacts. Ambio, 33(8), 509–512.
Rudel, T. (2005). Tropical forests: Regional paths of destruction and regeneration in the late 20th century. New York: Columbia University Press.
Shi, A. (2003). The impact of population pressure on global carbon dioxide emissions, 1975–1996: Evidence from pooled cross-country data. Ecological Economics, 44, 29–42.
United Nations Conference on Environment and Development (1993). Agenda 21: Programme of Action for Sustainable Development. New York: United Nations.
United Nations Environment Programme. (2009). Climate change science compendium 2009. New York: UNEP.
Wagner, M. (2008). The carbon Kuznets curve: A cloudy picture emitted by bad econometrics? Resource and Energy Economics, 30, 388–408.
Wooldridge, J. (2005). Introductory econometrics: A modern approach (3rd ed.). Mason: Thomson.
World Bank. (2007). World development indicators (CD ROM version). Washington, D.C.: World Bank.
World Resources Institute. (2005). Earth trends data CD-ROM: The wealth of the poor. Washington, D.C.: World Resources Institute.
York, R. (2007). Demographic trends and energy consumption in European Union Nations 1960–2025. Social Science Research, 36(3), 855–872.
York, R., Rosa, E., & Dietz, T. (2003). Footprints on the Earth: The environmental consequences of modernity. American Sociological Review, 68, 279–300.
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The authors thank the anonymous reviewers and editor for very helpful suggestions on a prior draft.
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Jorgenson, A.K., Clark, B. Assessing the temporal stability of the population/environment relationship in comparative perspective: a cross-national panel study of carbon dioxide emissions, 1960–2005. Popul Environ 32, 27–41 (2010). https://doi.org/10.1007/s11111-010-0117-x
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DOI: https://doi.org/10.1007/s11111-010-0117-x