Probabilistic Integrated Assessment of "Dangerous" Climate Change
- 23 April 2004
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 304 (5670), 571-575
- https://doi.org/10.1126/science.1094147
Abstract
Climate policy decisions are being made despite layers of uncertainty. Such decisions directly influence the potential for “dangerous anthropogenic interference with the climate system.” We mapped a metric for this concept, based on Intergovernmental Panel on Climate Change assessment of climate impacts, onto probability distributions of future climate change produced from uncertainty in key parameters of the coupled social-natural system—climate sensitivity, climate damages, and discount rate. Analyses with a simple integrated assessment model found that, under midrange assumptions, endogenously calculated, optimal climate policy controls can reduce the probability of dangerous anthropogenic interference from ∼45% under minimal controls to near zero.Keywords
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