How overconfident are current projections of anthropogenic carbon dioxide emissions?
Analyzing the risks of anthropogenic climate change requires sound probabilistic projections of CO2 emissions. Previous projections have broken important new ground, but many rely on out-of-range projections, are limited to the 21st century, or provide only implicit probabilistic information. Here we take a step towards resolving these problems by assimilating globally aggregated observations of population size, economic output, and CO2 emissions over the last three centuries into a simple economic model. We use this model to derive probabilistic projections of business-as-usual CO2 emissions to the year 2150. We demonstrate how the common practice to limit the calibration timescale to decades can result in biased and overconfident projections. The range of several CO2 emission scenarios (e.g., from the Special Report on Emission Scenarios) misses potentially important tails of our projected probability density function. Studies that have interpreted the range of CO2 emission scenarios as an approximation for the full forcing uncertainty may well be biased towards overconfident climate change projections.
|Date of creation:||Jan 2007|
|Date of revision:||Jan 2007|
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- Kongsamut, Piyabha & Rebelo, Sérgio & Xie, Danyang, 1997.
"Beyond Balanced Growth,"
CEPR Discussion Papers
1693, C.E.P.R. Discussion Papers.
- Piyabha Kongsamut & Sergio Rebelo & Danyang Xie, 1997. "Beyond Balanced Growth," NBER Working Papers 6159, National Bureau of Economic Research, Inc.
- Sergio Rebelo & Piyabha Kongsamut & Danyang Xie, 2001. "Beyond Balanced Growth," IMF Working Papers 01/85, International Monetary Fund.
- Kongsamut, P. & Rebelo, S. & Xie, D., 1997. "Beyong Balanced Growth," RCER Working Papers 438, University of Rochester - Center for Economic Research (RCER).
- Holtz-Eakin, Douglas & Selden, Thomas M., 1995.
"Stoking the fires? CO2 emissions and economic growth,"
Journal of Public Economics,
Elsevier, vol. 57(1), pages 85-101, May.
- Douglas Holtz-Eakin & Thomas M. Selden, 1992. "Stoking the Fires? Co2 Emissions and Economic Growth," NBER Working Papers 4248, National Bureau of Economic Research, Inc.
- Edmonds, Jae & Reilly, John, 1983. "A long-term global energy- economic model of carbon dioxide release from fossil fuel use," Energy Economics, Elsevier, vol. 5(2), pages 74-88, April.
- Manne, Alan & Richels, Richard, 2004. "US rejection of the Kyoto Protocol: the impact on compliance costs and CO2 emissions," Energy Policy, Elsevier, vol. 32(4), pages 447-454, March.
- Angus Deaton & Christina Paxson, 2000. "Growth and Saving Among Individuals and Households," The Review of Economics and Statistics, MIT Press, vol. 82(2), pages 212-225, May.
- Ausubel, Jesse H, 1995. "Technical progress and climatic change," Energy Policy, Elsevier, vol. 23(4-5), pages 411-416.
- William D. Nordhaus & David Popp, 1996.
"What is the Value of Scientific Knowledge? An Application to Global Warming Using the PRICE Model,"
Cowles Foundation Discussion Papers
1117, Cowles Foundation for Research in Economics, Yale University.
- William D. Nordhaus & David Popp, 1997. "What is the Value of Scientific Knowledge? An Application to Global Warming Using the PRICE Model," The Energy Journal, International Association for Energy Economics, vol. 0(Number 1), pages 1-45.
- Pizer, William A., 1999. "The optimal choice of climate change policy in the presence of uncertainty," Resource and Energy Economics, Elsevier, vol. 21(3-4), pages 255-287, August.
- Nadiri, M Ishaq & Prucha, Ingmar R, 1996. "Estimation of the Depreciation Rate of Physical and R&D Capital in the U.S. Total Manufacturing Sector," Economic Inquiry, Western Economic Association International, vol. 34(1), pages 43-56, January.
- Tschang, F. Ted & Dowlatabadi, Hadi, 1995. "A Bayesian technique for refining the uncertainty in global energy model forecasts," International Journal of Forecasting, Elsevier, vol. 11(1), pages 43-61, March.
- Dowlatabadi, Hadi & Oravetz, Matthew A., 2006. "US long-term energy intensity: Backcast and projection," Energy Policy, Elsevier, vol. 34(17), pages 3245-3256, November.
- Grubler, Arnulf & Nakicenovic, Nebojsa & Victor, David G., 1999. "Dynamics of energy technologies and global change," Energy Policy, Elsevier, vol. 27(5), pages 247-280, May.
- Heil, Mark T. & Selden, Thomas M., 2001. "Carbon emissions and economic development: future trajectories based on historical experience," Environment and Development Economics, Cambridge University Press, vol. 6(01), pages 63-83, February.
- Keller, Klaus & Bolker, Benjamin M. & Bradford, D.F.David F., 2004. "Uncertain climate thresholds and optimal economic growth," Journal of Environmental Economics and Management, Elsevier, vol. 48(1), pages 723-741, July.
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