Despite continued growth in atmospheric levels of greenhouse gases, global mean surface and tropospheric temperatures have shown slower warming since 1998 than previously1,2,3,4,5. Possible explanations for the slow-down include internal climate variability3,4,6,7, external cooling influences1,2,4,8,9,10,11 and observational errors12,13. Several recent modelling studies have examined the contribution of early twenty-first-century volcanic eruptions1,2,4,8 to the muted surface warming. Here we present a detailed analysis of the impact of recent volcanic forcing on tropospheric temperature, based on observations as well as climate model simulations. We identify statistically significant correlations between observations of stratospheric aerosol optical depth and satellite-based estimates of both tropospheric temperature and short-wave fluxes at the top of the atmosphere. We show that climate model simulations without the effects of early twenty-first-century volcanic eruptions overestimate the tropospheric warming observed since 1998. In two simulations with more realistic volcanic influences following the 1991 Pinatubo eruption, differences between simulated and observed tropospheric temperature trends over the period 1998 to 2012 are up to 15% smaller, with large uncertainties in the magnitude of the effect. To reduce these uncertainties, better observations of eruption-specific properties of volcanic aerosols are needed, as well as improved representation of these eruption-specific properties in climate model simulations.
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Solomon, S. et al. The persistently variable ‘background’ stratospheric aerosol layer and global climate change. Science 333, 866–870 (2011).
Fyfe, J. C., von Salzen, K., Cole, J. N. S., Gillett, N. P. & Vernier, J-P. Surface response to stratospheric aerosol changes in a coupled atmosphere–ocean model. Geophys. Res. Lett. 40, 584–588 (2013).
Santer, B. D. et al. Separating signal and noise in atmospheric temperature changes: The importance of timescale. J. Geophys. Res. 116, D22105 (2011).
Fyfe, J. C., Gillett, N. P. & Zwiers, F. W. Overestimated global warming over the past 20 years. Nature Clim. Change 3, 767–769 (2013).
Santer, B. D. et al. Identifying human influences on atmospheric temperature. Proc. Natl. Acad. Sci. USA 110, 26–33 (2013).
Meehl, G. A., Arblaster, J. M., Fasullo, J. T., Hu, A. & Trenberth, K. E. Model-based evidence of deep-ocean heat uptake during surface-temperature hiatus periods. Nature Clim. Change 1, 360–364 (2011).
Kosaka, K. & Xie, S-P. Recent global-warming hiatus tied to equatorial Pacific surface cooling. Nature 501, 403–407 (2013).
Haywood, J. M., Jones, A. & Jones, G. S. The impact of volcanic eruptions in the period 2000-2013 on global mean temperature trends evaluated in the HadGEM2-ES climate model. Atmos. Sci. Lett. (2013)10.1002/asl2.471
Kopp, G. & Lean, J. L. A new, lower value of total solar irradiance: Evidence and climate significance. Geophys. Res. Lett. 38, L01706 (2011).
Solomon, S. et al. Contributions of stratospheric water vapour to decadal changes in the rate of global warming. Science 327, 1219–1223 (2010).
Shindell, D. T. et al. Radiative forcing in the ACCMIP historical and future climate simulations. Atmos. Chem. Phys. 13, 2939–2974 (2013).
Morice, C. P., Kennedy, J. J., Rayner, N. A. & Jones, P. D. Quantifying uncertainties in global and regional temperature change using an ensemble of observational estimates: The HadCRUT4 data set. J. Geophys. Res. 117, D08101 (2012).
Mears, C., Wentz, F. J., Thorne, P. & Bernie, D. Assessing uncertainty in estimates of atmospheric temperature changes from MSU and AMSU using a Monte-Carlo technique. J. Geophys. Res. 116, D08112 (2011).
Christy, J. R., Norris, W. B., Spencer, R. W. & Hnilo, J. J. Tropospheric temperature change since 1979 from tropical radiosonde and satellite measurements. J. Geophys. Res. 112, D06102 (2007).
Cowtan, K. & Way, R. G. Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends, Quart. J. Roy. Met. Soc.http://dx.doi.org/10.1002/qj.2297 (in the press)
Taylor, K. E., Stouffer, R. J. & Meehl, G. A. An overview of CMIP5 and the experiment design. Bull. Amer. Meteor. Soc. (2012)10.1175/BAMS-D-11-00094.1
Robock, A. Volcanic eruptions and climate. Rev. Geophys. 38, 191–219 (2000).
Sato, M., Hansen, J. E., McCormick, M. P. & Pollack, J. B. Stratospheric aerosol optical depth, 1850–1990. J. Geophys. Res. 98, 22987–22994 (1993).
Ramaswamy, V. et al. Anthropogenic and natural influences in the evolution of lower stratospheric cooling. Science 311, 1138–1141 (2006).
Wigley, T M L., Ammann, C. M., Santer, B. D. & Raper, S C B. The effect of climate sensitivity on the response to volcanic forcing. J. Geophys. Res. 110, D09107 (2005).
Santer, B. D. et al. Accounting for the effects of volcanoes and ENSO in comparisons of modeled and observed temperature trends. J. Geophys. Res. 106, 28033–28059 (2001).
Thompson, D W J., Wallace, J. M., Jones, P. D. & Kennedy, J. J. Identifying signatures of natural climate variability in time series of global-mean surface temperature: Methodology and insights. J. Clim. 22, 6120–6141 (2009).
Smith, T. M., Reynolds, R. W., Peterson, T. C. & Lawrimore, J. Improvements to NOAA’s historical merged land-ocean surface temperature analysis (1880–2006). J. Clim. 21, 2283–2296 (2008).
Vernier, J.-P. et al. Major influence of tropical volcanic eruptions on the stratospheric aerosol layer during the last decade. Geophys. Res. Lett. 38, L12807 (2011).
Neely III, R. R. et al. Recent anthropogenic increases in SO2 from Asia have minimal impact on stratospheric aerosol. Geophys. Res. Lett. 40 (2013)10.1002grl.50263
Loeb, N. G. et al. Towards optimal closure of the earth’s top-of-atmosphere radiation budget. J. Climate 22, 748–766 (2009).
Christy, J. R. Testimony in Hearing before the Subcommittee on Energy and Power, Committee on Energy and Commerce, House of Representatives, March 8, 2011. http://republicans.energycommerce.house.gov/Media/file/Hearings/Energy/030811/Christy.pdf
Hassler, B. et al. Comparison of three vertically resolved ozone data sets: Climatology, trends and radiative forcings. Atmos. Chem. Phys. 13, 5533–5550 (2013).
Eyring, V. et al. Long-term ozone changes and associated climate impacts in CMIP5 simulations. J. Geophys. Res. 118, 5029–5060 (2013).
We acknowledge the World Climate Research Programme’s Working Group on Coupled Modelling, which is responsible for CMIP, and we thank the climate modelling groups for producing and making available their model output. For CMIP, the US Department of Energy’s Program for Climate Model Diagnosis and Intercomparison (PCMDI) provides coordinating support and led development of software infrastructure in partnership with the Global Organization for Earth System Science Portals. J-P. Vernier (NASA Langley) and M. Sato (GISS) supplied updated SAOD data. T.M.L. Wigley (University of Adelaide), N. Gillett (Canadian Centre for Climate Modelling and Analysis), A. Robock (Rutgers University), K. Trenberth (National Center for Atmospheric Research) and S.F.B. Tett (University of Edinburgh) provided helpful comments. At PCMDI, work by B.D.S., J.P., M.Z. and K.E.T. was performed under the auspices of the U.S. Department of Energy under contract DE-AC52-07NA27344; C.B. was supported by the DOE/OBER Early Career Research Program Award SCW1295.
The authors declare no competing financial interests.
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Santer, B., Bonfils, C., Painter, J. et al. Volcanic contribution to decadal changes in tropospheric temperature. Nature Geosci 7, 185–189 (2014). https://doi.org/10.1038/ngeo2098
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