Photo of Prof Pierre Friedlingstein FRS

Prof Pierre Friedlingstein FRS

Chair, Mathematical Modelling of Climate Systems


Location: Laver Building 720

Telephone: 01392 725279

Extension: (Streatham) 5279

Professor Pierre Friedlingstein is a Fellow of the Royal Society. He holds a Chair in Mathematical Modelling of the Climate System at the University of Exeter and is the director of the Global Carbon Budget Office.

His research interests are in the field of global biogeochemical cycles and their interaction with the climate system.

More specifically, he is interested in the coupling between climate change and the major biogeochemical cycles over the historical period and in the future. He identified the positive feedback between climate change and carbon cycle and developed a mathematical framework for climate-carbon feedbacks analysis.

Pierre coordinates the annual Global Carbon Budget of the Global Carbon Project (GCP), and also co-lead the  coupled climate carbon cycle intercomparison project (C4MIP).

He is member of the Joint Steering Committee (JSC)  of the World Climate Research Programme (WCRP).

He has been actively involved in climate assessment through his participation in the Intergovernmental Panel on Climate Change (IPCC) since 1994. He was lead author for the IPCC Fifth Assessment Report.


Full publication list available here


Selected Recent Publications :

  1. Friedlingstein, P., O'Sullivan, M., Jones, M. W., et al. Global Carbon Budget 2023, Earth Syst. Sci. Data, 15, 5301–5369,, 2023.
  2. Terhaar J, Frolicher TL, Aschwanden MT, Friedlingstein P, Joos F (2022) Adaptive emission reduction approach to reach any global warming target, Nature Climate Change,
  3. O'Sullivan M, Friedlingstein P, Sitch S, et al. (2022) Process-oriented analysis of dominant sources of uncertainty in the land carbon sink, Nature Communications, 10.1038/s41467-022-32416-8
  4. Jones, C.D., Friedlingstein, P., Quantifying process-level uncertainty contributions to TCRE and carbon budgets for meeting Paris Agreement climate targets, Env. Res. Lett., 15, 10.1088/1748-9326/ab858a
  5. Le Quere, C; Jackson, RB; Jones, MW; Smith, AJP; Abernethy, S; Andrew, RM; De-Gol, AJ; Willis, DR; Shan, YL; Canadell, OS; Friedlingstein, PER; Creutzig, EL; Peters, GP, Temporary reduction in daily global CO2 emissions during the COVID-19 forced confinement, Nature Clim. Change, 10, 10.1038/s41558-020-0797-x
  6. Davies-Barnard, T; Friedlingstein, P., Distribution of Biological Nitrogen Fixation in Terrestrial Natural Ecosystems, Glob. Biogeochem. Cycl.34 (3), 10.1029/2019GB006387
  7.  Peters, G.P., Andrew, R.M., Canadell, J.G. et al. Carbon dioxide emissions continue to grow amidst slowly emerging climate policies. Nat. Clim. Chang. 10, 3–6 (2020).
  8. Friedlingstein, P., Jones, M. W., O'Sullivan, M., et al. Global Carbon Budget 2019 (2019) Earth Syst. Sci. Data, 11, 1783–1838,
  9. Friedlingstein P., M. Allen, JG Canadell, GPP Peters and SI Seneviratne, (2019) Comment on "The global tree restoration potential”, Science 10.1126/science.aay8060.
  10. Bastos, A, Friedlingstein, P, Sitch, S, et al. (2018) Impact of the 2015/2016 El Nino on the terrestrial carbon cycle constrained by bottom-up and top-down approaches, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373, 10.1098/rstb.2017.0304
  11. Buermann, W, Forkel, M, O'Sullivan, M, Sitch, S, Friedlingstein, P, Haverd, V, Jain, AK, Kato, E, Kautz, M, Lienert, S, Lombardozzi, DA, Nabel, JEMS, Tian, HQ, Wiltshire, AJ, Zhu, D, Smith, WK, Richardson, AD (2018) Widespread seasonal compensation effects of spring warming on northern plant productivity, Nature, 562, 10.1038/s41586-018-0555-7, 2018
  12. Piao, S, Huang, M, Liu, Z, Wang, XH, Ciais, P, Canadell, JG, Wang, K, Bastos, A, Friedlingstein, P, Houghton, RA, Le Quere, C, Liu, YW, Myneni, RB, Peng, SS, Pongratz, J, Sitch, S, Yan, T, Wang, YL, Zhu, ZC, Wu, DH, Wang, T (2018)  Lower land use emissions increased net land carbon sink during the slow warming period, Nature Geoscience, 11? 10.1038/s41561-018-0204-7.
  13. Millar, R., Fuglestvedt, JS, Friedlingstein, P, Rogelj J, Grubb MJ, Matthews HD, Skeie RB, Forster PM, Frame DJ, Allen MR, Emission budgets and pathways consistent with limiting warming to 1.5 C (2017) Nature Geosciences, DOI: 10.1038/NGEO3031
  14. Ballantyne, A, Smith, W, Anderegg, W, Kauppi, P, Sarmiento, J, Tans, P, Shevliakova, E, Pan, Y, Poulter, B, Anav, A, Friedlingstein, P, Houghton, R, Running, S (2017) Accelerating net terrestrial carbon uptake during the warming hiatus due to reduced respiration, Nature Climate Change, 7, DOI: 10.1038/NCLIMATE3204
  15. Jung, M; Reichstein, M; Schwalm, CR; Huntingford, C; Sitch, S; Ahlstrom, A; Arneth, A; Camps-Valls, G; Ciais, P; Friedlingstein, P; Gans, F; Ichii, K; Ain, AKJ; Kato, E; Papale, D; Ben Poulter,; Raduly, B; Rodenbeck, C; Tramontana, G; Viovy, N; Wang, YP; Weber, U; Zaehle, S; Zeng, N (2017) Compensatory water effects link yearly global land CO2 sink changes to temperature, Nature 541, DOI10.1038/nature20780
  16. Wenzel S., Cox PM, Eyring V, and Friedlingstein P (2016) Projected land photosynthesis constrained by changes in the seasonal cycle of atmospheric CO2, Nature, doi:10.1038/nature19772
  17. Zhu, Z., Piao, S., Myneni, R. B., Huang, M., Zeng, Z., Canadell, J. G., Ciais, P., Sitch, S., Friedlingstein, P., et al. (2016) Greening of the Earth and its drivers. Nature Climate Change, doi:10.1038/nclimate3004
  18. Tian H., Lu, C., Ciais, P., Michalak, A.M., Canadell, J.G., Saikawa, E., Huntzinger, D.N., Gurney, K.R., Sitch, S., Zhang, B., Yang, J., Bousquet, P., Bruhwiler, L., Chen, G., Dlugokencky, E., Friedlingstein, P., et al. (2016) The terrestrial biosphere as a net source of greenhouse gases to the atmosphere. Nature, 531, doi:10.1038/nature16946
  19. Rogelj, J., Schaeffer, M., Friedlingstein, et al. (2016). Differences between carbon budget estimates unravelled. Nature Climate Change, 6, doi:10.1038/nclimate2868
  20. Jones, CD., Arora, V., Friedlingstein, P., Bopp L, Brovkin V, Dunne, J., Graven, H., Hoffman, F., Ilyina, T., John, J.G., Jung, M., Kawamiya, M., Koven, C., Pongratz, J., Raddatz, T., Randerson, J.T., Zaehle, S. (2016) C4MIP-The Coupled Climate-Carbon Cycle Model Intercomparison Project: Experimental protocol for CMIP6. Geoscientific Model Development, 9 (8), pp. 2853-2880.
  21. Friedlingstein, P. (2015). Carbon cycle feedbacks and future climate change. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373(2054). doi:10.1098/rsta.2014.0421
  22. Smith, P., Davis, S. J., Creutzig, F., Fuss, S., Minx, J., Gabrielle, B., Kato, E., Jackson, R.B., Cowie, A., Kriegler, E., van Vuuren, D.P; Rogelj, J., Ciais, P., Milne, J., Canadell, J.G., McCollum, D., Peters, G., Andrew, R., Krey, V., Shrestha, G., Friedlingstein, P et al.(2016). Biophysical and economic limits to negative CO2 emissions. Nature Climate Change, 6(1), 42-50. doi:10.1038/nclimate2870
  23. Ahlström A., M.R. Raupach, G. Schurgers, B. Smith, A. Arneth, M. Jung, M. Reichstein, J.G. Canadell, P. Friedlingstein, et al. (2015). The dominant role of semi-arid ecosystems in the trend and variability of the land CO2 sink. Science, 348, 895-899.
  24. Friedlingstein, P, Andrew RM, Rogelj J., Peters GP, Canadell JG, Knutti R, Luderer G, Raupach MR, Schaeffer M, vanVuuren DP, LeQuéré C, (2014) Persistent growth of CO2 emissions and implications for reaching climate targets. Nature Geoscience, 7, 709–715, (2014), doi:10.1038/ngeo2248
  25. Friedlingstein, P., Meinshausen, M., Arora, V.K., Jones, C.D., Anav, A., Liddicoat, S.K., Knutti, R. (2014) Uncertainties in CMIP5 Climate Projections due to Carbon Cycle Feedbacks. J.Climate, 27, 511-526, DOI: 10.1175/JCLI-D-12-00579.1
  26. Cox, PM, Pearson, D, Booth, BB, Friedlingstein, P, et al. (2013) Sensitivity of tropical carbon to climate change constrained by carbon dioxide variability, Nature, 494, 341-344, 10.1038/nature11882.
  27. Friedlingstein, P, Solomon S, Plattner, GK, Knutti R, Ciais P, Raupach, MR, (2011) Long-term climate implications of twenty-first century options for carbon dioxide emission mitigation, Nature Climate Change, 1, 457-461.
  28. Friedlingstein, P., R. A. Houghton, G. Marland, J. Hackler, T. A. Boden, T. J. Conway, J. G. Canadell, M. R. Raupach, P. Ciais and C. Le Quéré , Update on CO2 emissions, Nature Geoscience, 3, 811-812, 2010.
  29. Solomon, S. R. Knutti, G.K. Plattner, and P. Friedlingstein, 2009, Irreversible Climate Change Due To Carbon Dioxide Emissions, PNAS, 106, 1704-1709.
  30. Friedlingstein, P., et al.  2006, Climate -carbon cycle feedback analysis, results from the C4MIP model intercomparison, J. Climate, 19, 3337-3353.