Abstract
Disentangling the relative importance of climate change abatement policies from the human–Earth system (HES) uncertainties that determine their performance is challenging because the two are inexorably linked, and the nature of this linkage is dynamic, interactive and metric specific1. Here, we demonstrate an approach to quantify the individual and joint roles that diverse HES uncertainties and our choices in abatement policy play in determining future climate and economic conditions, as simulated by an improved version of the Dynamic Integrated model of Climate and the Economy2,3. Despite wide-ranging HES uncertainties, the growth rate of global abatement (a societal choice) is the primary driver of long-term warming. It is not a question of whether we can limit warming but whether we choose to do so. Our results elucidate important long-term HES dynamics that are often masked by common time-aggregated metrics. Aggressive near-term abatement will be very costly and do little to impact near-term warming. Conversely, the warming that will be experienced by future generations will mostly be driven by earlier abatement actions. We quantify probabilistic abatement pathways to tolerable climate/economic outcomes4,5, conditional on the climate sensitivity to the atmospheric CO2 concentration. Even under optimistic assumptions about the climate sensitivity, pathways to a tolerable climate/economic future are rapidly narrowing.
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Code availability
The CDICE2013 model2 was updated to be consistent with DICE-2016R3, and is available at: https://github.com/JRLamontagne/cdice_sa
Data availability
The data that were used in this analysis are available at the GitHub repository: https://github.com/JRLamontagne/cdice_sa
References
Butler, M. P., Reed, P. M., Fisher-Vanden, K., Keller, K. & Wagener, T. Identifying parametric controls and dependencies in integrated assessment models using global sensitivity analysis. Environ. Model. Software 59, 10–29 (2014).
Garner, G., Reed, P. & Keller, K. Climate risk management requires explicit representation of societal trade-offs. Clim. Change 134, 713–723 (2016).
Nordhaus, W. D. Revisiting the social cost of carbon. Proc. Natl Acad. Sci. USA 114, 1518–1523 (2017).
Yohe, G. W. Uncertainty, short-term hedging and the tolerable window approach. Global Environ. Change 7, 303–315 (1997).
Bruckner, T. et al. Climate change decision-support and the tolerable windows approach. Environ. Model. Assess. 4, 217–234 (1999).
Moss, R. H. et al. The next generation of scenarios for climate change research and assessment. Nature 63, 747–756 (2010).
Weyant, J. Integrated assessment of climate change: state of the literature. J. Benefit–Cost Anal. 5, 377–409 (2014).
Vuuren, D. Pv. et al. The representative concentration pathways: an overview. Clim. Change 109, 5 (2011).
Riahi, K. et al. The shared socioeconomic pathways and their energy, land use, and greenhouse gas emissions implications: an overview. Global Environ. Change 2, 153–168 (2017).
Marangoni, G. et al. Sensitivity of projected long-term CO2 emissions across the shared socioeconomic pathways. Nat. Clim. Change 7, 113–117 (2017).
Mathias, J.-D., Anderies, J. M. & Janssen, M. A. On our rapidly shrinking capacity to comply with the planetary boundaries on climate change. Sci. Rep. 7, 42061 (2017).
Petschel-Held, G., Schellnhuber, H.-J., Bruckner, T., Tóth, F. L. & Hasselmann, K. The tolerable windows approach: theoretical and methodological foundations. Clim. Change 41, 303–331 (1999).
Nordhaus, W. Estimates of the social cost of carbon: concepts and results from the DICE-2013r model and alternative approaches. J. Assn Environ. Resource Econom. 1, 273–312 (2014).
Weyant, J. P. Some contributions of integrated assessment models of global climate change. Rev. Environ. Econ. Policy 11, 115–137 (2017).
Goes, M., Tuana, N. & Keller, K. The economics (or lack thereof) of aerosol geoengineering. Clim. Change 109, 719–744 (2011).
Kriegler, E. Imprecise Probability Analysis For Integrated Assessment Of Climate Change. PhD thesis, Univ. Potsdam (2005).
Lamontagne, J. et al. Large ensemble analytic framework for consequence‐driven discovery of climate change scenarios. Earth’s Future 6, 488–504 (2018).
Nordhaus, W. Strategies for the Control of Carbon Dioxide Cowles Foundation Discussion Paper 443 (Cowles Foundation for Research in Economics, Yale University, 1977); https://econpapers.repec.org/paper/cwlcwldpp/443.htm
Leimbach, M. & Bruckner, T. Influence of economic constraints on the shape of emission corridors. Comput. Econ. 18, 173–191 (2001).
Azar, C. & Schneider, S. H. Are the economic costs of stabilising the atmosphere prohibitive? Ecol. Econ. 42, 73–80 (2002).
Paris Agreement (UNFCCC, 2016); https://unfccc.int/resource/docs/2015/cop21/eng/l09r01.pdf
Sobol, I. Sensitivity estimates for nonlinear mathematical models and their Monte Carlo estimation. Math. Model. Comput. Exp. 1, 407–417 (1993).
Beck, M. & Krueger, T. The epistemic, ethical, and political dimensions of uncertainty in integrated assessment modeling. Wiley Interdiscip. Rev. Clim. Change 7, 627–645 (2016).
Adler, M. et al. Priority for the worse-off and the social cost of carbon. Nat. Clim. Change 7, 443–449 (2017).
Shue, H. Mitigation gambles: uncertainty, urgency and the last gamble possible. Phil. Trans. R. Soc. A 376, 20170105 (2018).
Raftery, A. E., Zimmer, A., Frierson, D. M. W., Startz, R. & Liu, P. Less than 2 °C warming by 2100 unlikely. Nat. Clim. Change 7, 637–641 (2017).
Butler, M. P., Reed, P. M., Fisher-Vanden, K., Keller, K. & Wagener, T. Inaction and climate stabilization uncertainties lead to severe economic risks. Clim. Change 127, 463–474 (2014).
Fuss, S. et al. Betting on negative emissions. Nat. Clim. Change 4, 850–853 (2014).
Vuuren, D. Pv, Hof, A. F., Sluisveld, M. A. Ev & Riahi, K. Open discussion of negative emissions is urgently needed. Nat. Energy 2, 902–904 (2017).
Luderer, G. et al. Residual fossil CO2 emissions in 1.5–2 °C pathways. Nat.Clim. Change 8, 626–633 (2018).
Hansen, J., Ruedy, R., Sato, M. & Lo, K. Global surface temperature change. Rev. Geophys. 48 (2010); https://doi.org/10.1029/2010RG000345
Hansen, J., Sato, M., Kharecha, P. & von Schuckmann, K. Earth’s energy imbalance and implications. Atmos. Chem. Phys. 11, 13421–13449 (2011).
Sobol, I. Global sensitivity indices for nonlinear mathematical models and their Monte Carlo estimates. Math. Comput. Simul. 55, 271–280 (2001).
Saltelli, A. Making best use of model evaluations to compute sensitivity indices. Comp. Phys. Commun. 145, 280–297 (2002).
Saltelli, A. et al. Variance based sensitivity analysis of model output. Design and estimator for the total sensitivity index. Comput. Phys. Commun. 181, 259–270 (2010).
Archer, G., Saltelli, A. & Sobol, I. Sensitivity measures, ANOVA-like techniques and the use of bootstrap. J. Statist. Comput. Simul. 58, 99–120 (1997).
Herman, J. & Usher, W. SALib: an open-source Python library for Sensitivity Analysis. J Open Source Software 2, 97 (2017).
Wilks, D. Statistical Methods in the Atmospheric Sciences 2nd edn (Academic Press, New York, 2006).
Bryant, B. P. & Lempert, R. J. Thinking inside the box: a participatory, computer-assisted approach to scenario discovery. Technol. Forecast. Soc. Change 77, 34–49 (2010).
Quinn, J. D. et al. Exploring how changing monsoonal dynamics and human pressures challenge multireservoir management for flood protection, hydropower production, and agricultural water supply. Water Resour. Res. 54, 4683–4662 (2018).
Herman, J, D., Reed, P, M., Zeff, H, B. & Characklis W. How should robustness be defined for water systems planning under change?. J. Water Res. Plan. Man. 141, 04015012 (2015).
McPhail, C. et al. Robustness metrics: how are they calculated, when should they be used and why do they give different results?. Earth’s Future 6, 169–191 (2018).
Acknowledgments
This work was partially supported by the National Science Foundation (NSF) through the Network for Sustainable Climate Risk Management under NSF cooperative agreement GEO-1240507 as well as the Penn State Center for Climate Risk Management. Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.
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J.R.L., G.G.G. and G.M. prepared the computer models. J.R.L. conducted the simulation. J.R.L. and G.M. performed the data analysis with help from G.G.G. P.M.R. and K.K. supervised the project. All authors wrote the manuscript.
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Journal peer review information: Nature Climate Change thanks Jan Kwakkel, Francesca Pianosi and Matthias Weitzel for their contribution to the peer review of this work.
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Supplementary Information
Supplementary Methods, Supplementary Tables 1–15, Supplementary Figures 1–7, Supplementary References
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Lamontagne, J.R., Reed, P.M., Marangoni, G. et al. Robust abatement pathways to tolerable climate futures require immediate global action. Nat. Clim. Chang. 9, 290–294 (2019). https://doi.org/10.1038/s41558-019-0426-8
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DOI: https://doi.org/10.1038/s41558-019-0426-8
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