Abstract
AbstractWe consider alternative history scenarios in which explicit climate mitigation begins before the present day, estimating the total costs to date of delayed action. Considering a 2(1.5) degree Celsius stabilization target, peak costs are greater and reached sooner with a later start to mitigation, reaching 15(17)% of global GDP in 2085(2070) for a 1990 start and 18(35)% in 2080(2035) for a 2020 start. Further mitigation delay costs a best estimate of an additional 0.5(5) trillion dollars per year. Additional simulations show how optimal mitigation pathways evolve without imposing a warming limit, finding that median abatement levels and costs are not strongly dependent on start date. However, whereas 18(5) percent of optimal solutions starting in 1980 meet the 2(or 1.5) degree target, 5(or 0)% of 2020 simulations meet the goals. Discounted damages due to delayed mitigation action rise by 0.6 trillion US dollars per year in 2020.
Funder
Agence Nationale de la Recherche
Publisher
Springer Science and Business Media LLC
Reference56 articles.
1. Metcalf, G. E. & Stock, J. H. Integrated assessment models and the social cost of carbon: a review and assessment of US experience. Review of Environmental Economics and Policy 11, 80–99 (2017).
2. National Academies of Sciences, E., Medicine et al. Valuing climate damages: updating estimation of the social cost of carbon dioxide (National Academies Press, 2017).
3. Weyant, J. Some contributions of integrated assessment models of global climate change. Review of Environmental Economics and Policy 11, 115–137 (2017).
4. Schwanitz, V. J. Evaluating integrated assessment models of global climate change. Environmental modelling & software 50, 120–131 (2013).
5. Burke, M., Dykema, J., Lobell, D. B., Miguel, E. & Satyanath, S. Incorporating climate uncertainty into estimates of climate change impacts. Review of Economics and Statistics 97, 461–471 (2015).
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