Population and Temperature
The population estimates for the graphs in this paper come from Kremer (1993) and the United Nations, which provides estimates of the world population from 1950 through the present. In the graph in this paper, we show the medium UN variant.
Sources: source : http://econ161.berkeley.edu/TCEH/1998 _Draft/World_GDP/Estimating_World _GDP.html; Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat, World Population Prospects: The 2006 Revision and World Urbanization Prospects: The 2005 Revision, http://esa.un.org/unpp, Monday, December 29, 2008; 4:43:42 PM. http://esa.un.org/unpp/p2k0data.asp
Kremer, Michael (1993), `Population Growth and Technical Change, One Million B.C. to 1990`, Quarterly Journal of Economics 108: 3 (August), pp. 681 - 716.
Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat, World Population Prospects: The 2006 Revision and World Urbanization Prospects: The 2005 Revision, http://esa.un.org/unpp, Monday, December 29, 2008; 4:43:42 PM.
Stang, David J. Trends in Global Temperature. http://zipcodezoo.com/trends/Trends%20in%20Global%20Temp erature.asp
Stang, David J. Trends in World Population. http://zipcodezoo.com/trends/Trends%20in%20World%20Popul ation.asp
Other Papers in this Series
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- Trends in Global Temperature: Appendix In this appendix to Trends in Global Temperature, we examine monthly anomalies, seasonal anomalies, and mean global temperature in degrees centigrade. The Northern Hemisphere has generally warmed more than the Southern. This gap emerged in about 1920, disappeared between 1965 and 1990, but has re-emerged. Warming in the Northern Hemisphere has been most severe in the Arctic. Between 1920 and 1960, the Arctic was warmer than normal, and the Antarctic was colder than normal. Since 1980, both Arctic and Antarctic have been warmer than normal, with the greatest warming occurring in the Arctic. Last revised Sunday, January 11, 2009.
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- Trends in Snow and Ice Cover In the Northern Hemisphere, the average snow extent has decreased by 3.75 million square Km in the last 39 years. The greatest loss of snow cover has occurred in the months of June and July. In the Northern Hemisphere, the average extent of sea ice decreased by 1.5 million square Km during the period 1978-2008, from about 9.9 million square Km to about 8.4. In the Southern Hemisphere in this period, the extent of sea ice did not change significantly. Reduced snow and ice cover changes albedo, increasing the rate of warming. Last revised Friday, January 16, 2009.
- "Anthropogenic": A Look at Critical Correlates of Human Population Growth abstract Last revised Wednesday, January 14, 2009.
© 2009 David Stang. All rights reserved.
Dr. Stang is available for presentations on this topic. Contact him by email.
Last Revised: Wednesday, January 14, 2009