People_title

DGE Researcher Profile


Katharine Mach

Title: Senior Research Associate
Lab: Field
Phone: 1-650-561-5640
Email: kmach@carnegiescience.edu
curriculum vitae

Research Summary

Katharine J. Mach is a Senior Research Associate at Carnegie Science’s Department of Global Ecology. Her research is generating new possibilities for assessment of climate change risks and response options, to empower decisions and actions in a changing climate. Her work focuses in particular on improved methods for integrating diverse evidence, incorporating expert judgment, and communicating and validating resulting syntheses of knowledge. The goal is to create actionable foundations for climate solutions. For the past five years, Dr. Mach co-directed the scientific activities of Working Group II of the Intergovernmental Panel on Climate Change, which focuses on impacts, adaptation, and vulnerability. This work culminated in the IPCC’s Fifth Assessment Report and its Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. These reports advanced approaches for climate risk assessment and the treatment of uncertainties. Dr. Mach’s past research interests include biomechanical investigations of the impacts of climate change for ocean ecosystems. She received her PhD in Biological Sciences from Stanford University and AB in Biology from Harvard College.

Publications

2016

Hallegatte, S., J. Rogelj, M. Allen, L. Clarke, O. Edenhofer, C.B. Field, P. Friedlingstein, L. van Kesteren, R. Knutti, K.J. Mach, M. Mastrandrea, A. Michel, J. Minx, M. Oppenheimer, G.-K. Plattner, K. Riahi, M. Schaeffer, T.F. Stocker, and D.P. van Vuuren (2016). Mapping the climate change challenge. Nature Climate Change 6: 663-668.

Mach, K.J., M.D. Mastrandrea, T.E. Bilir, and C.B. Field (2016). Understanding and responding to danger from climate change: the role of key risks in the IPCC AR5. Climatic Change 136: 427-444.

IPCC (2016). Meeting Report of the Intergovernmental Panel on Climate Change Expert Meeting on Communication [Lynn, J., M. Araya, Ø. Christophersen, I. El Gizouli, S.J. Hassol, E.M. Konstantinidis, K.J. Mach, L.A. Meyer, K. Tanabe, M. Tignor, R. Tshikalanke, and J.-P. van Ypersele (eds.)]. World Meteorological Organization, Geneva, Switzerland, 229 pp.

IPCC (2016). Meeting Report of the Intergovernmental Panel on Climate Change Expert Meeting on Scenarios [Riahi, K., J.C. Minx, V. Barros, M. Bustamente, T. Carter, O. Edenhofer, C.B. Field, E. Kriegler, J.-F. Lamarque, K.J. Mach, R. Mathur, B. O'Neill, R. Pichs-Madruga, G.-K. Plattner, D. Qin, Y. Sokona, T. Stocker, T. Zhou, J. Antle, N. Arnell, J. Edmonds, S. Emori, P. Friedlingstein, J. Fuglestvedt, F. Joos, H. Lotze-C ampen, X. Lu. M. Meinshausen, N. Nakicenovik, M. Prather, B. Preston, N. Rao, J. Rogelj, J. Rozenberg, P.R. Shukla, J. Skea, C. Tebaldi, and D. van Vuuren (eds.)]. IPCC Working Group Ill Technical Support Unit, Potsdam Institute for Climate Impact Research, Potsdam, Germany, 56 pp.

Hallegatte, S., and K.J. Mach (2016). Make climate-change assessments more relevant. Nature 534: 613-615.

2015

IPCC (2015). Meeting Report of the Intergovernmental Panel on Climate Change Expert Meeting on Climate Change, Food, and Agriculture [Mastrandrea, M.D., K.J. Mach, V.R. Barros, T.E. Bilir, D.J. Dokken, O. Edenhofer, C.B. Field, T. Hiraishi, S. Kadner, T. Krug, J.C. Minx, R. PichsMadruga, G.-K. Plattner, D. Qin, Y. Sokona, T.F. Stocker, M. Tignor (eds.)]. World Meteorological Organization, Geneva, Switzerland, 68 pp.

Busch, D.S., M.J. O’Donnell, C. Hauri, K.J. Mach, M. Poach, S.C. Doney, and S.R. Signorini. (2015). Understanding, characterizing, and communicating responses to ocean acidification: Challenges and uncertainties. Oceanography 28(2): 30-39.

2014

IPCC (2014). Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Field, C.B., V.R. Barros, D.J. Dokken, K.J. Mach, M.D. Mastrandrea, T.E. Bilir, M. Chatterjee, K.L. Ebi, Y.O. Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCracken, P.R. Mastrandrea, and L.L. White (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

IPCC (2014). Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part B: Regional Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Barros, V.R., C.B. Field, D.J. Dokken, M.D. Mastrandrea, K.J. Mach, T.E. Bilir, M. Chatterjee, K.L. Ebi, Y.O. Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCracken, P.R. Mastrandrea, and L.L. White (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

IPCC (2014). Summary for Policymakers. In: Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Field, C.B., V.R. Barros, D.J. Dokken, K.J. Mach, M.D. Mastrandrea, T.E. Bilir, M. Chatterjee, K.L. Ebi, Y.O. Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCracken, P.R. Mastrandrea, and L.L. White (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

Field, C.B., V.R. Barros, K.J. Mach, M.D. Mastrandrea, et al. (2014). Technical Summary. In: Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Field, C.B., V.R. Barros, D.J. Dokken, K.J. Mach, M.D. Mastrandrea, T.E. Bilir, M. Chatterjee, K.L. Ebi, Y.O. Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCracken, P.R. Mastrandrea, and L.L. White (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

IPCC (2014). Glossary [Agard, J., E.L.F. Schipper, J. Birkmann, M. Campos, C. Dubeux, Y. Nojiri, L. Olsson, B. Osman-Elasha, M. Pelling, M.J. Prather, M.G. Rivera-Ferre, O.C. Ruppel, A. Sallenger, K.R. Smith, A.L. St. Clair, K.J. Mach, M.D. Mastrandrea, and T.E. Bilir (eds.)]. In: Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part B: Regional Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Barros, V.R., C.B. Field, D.J. Dokken, M.D. Mastrandrea, K.J. Mach, T.E. Bilir, M. Chatterjee, K.L. Ebi, Y.O. Estrada, R.C. Genova, B. Girma, E.S. Kissel, A.N. Levy, S. MacCracken, P.R. Mastrandrea, and L.L. White (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

IPCC (2014). Climate Change 2014: Synthesis Report. Cambridge University Press, Cambridge, United Kingdom, and New York, NY, USA. [Mach, K.J., Core Writing Team member]

IPCC (2014). Summary for Policymakers. In: Climate Change 2014: Synthesis Report. Cambridge University Press, Cambridge, United Kingdom, and New York, NY, USA. [Mach, K.J., Core Writing Team member]

2013

Gattuso, J.-P., Mach, K.J., and Morgan, G. (2013). Ocean acidification and its impacts: an expert survey. Climatic Change 117: 725-738.

Mach, K.J. (2013). Mechanisms of ecological change: research to management. [Review of the book Ecological consequences of climate change: mechanisms, conservation, and management, ed. E.A. Beever and J.L. Belant]. Ecology 94(1): 257-258.

Denny, M.W., Mach, K.J., Tepler, S., and Martone, P. (2013). Indefatigable: an erect coralline alga is highly resistant to fatigue. Journal of Experimental Biology 216: 3772-3780. (Press)

Kundzewicz, Z.W., Kanae, S., Seneviratne, S.I., Handmer, J., Nicholls, N., Peduzzi, P., Mechler, R., Bouwer, L.M., Arnell, N., Mach, K., Muir-Wood, R., Brakenridge, G.R., Kron, W., Benito, G., Honda, Y., Takahashi, K., and Sherstyukov, B. (2013). Flood risk and climate change: global and regional perspectives. Hydrological Sciences Journal 59(1): 1-28.

2012

IPCC (2012). Workshop Report of the Intergovernmental Panel on Climate Change Workshop on Socio-Economic Scenarios [Edenhofer, O., R. Pichs-Madruga, Y. Sokona, V. Barros, C.B. Field, T. Zwickel, S. Schloemer, K. Ebi, M. Mastrandrea, K. Mach, C. von Stechow (eds.)]. IPCC Working Group III Technical Support Unit, Potsdam Institute for Climate Impact Research, Potsdam Germany, pp. 51.

IPCC (2012). Meeting Report of the Intergovernmental Panel on Climate Change Expert Meeting on Geoengineering [O. Edenhofer, R. Pichs-Madruga, Y. Sokona, C. Field, V. Barros, T.F. Stocker, Q. Dahe, J. Minx, K. Mach, G.-K. Plattner, S. Schlömer, G. Hansen, M. Mastrandrea (eds.)]. IPCC Working Group III Technical Support Unit, Potsdam Institute for Climate Impact Research, Potsdam, Germany, pp. 99.

IPCC (2012). Meeting Report of the Intergovernmental Panel on Climate Change Expert Meeting on Economic Analysis, Costing Methods, and Ethics [Field, C.B., V. Barros, O. Edenhofer, R. Pichs- Madruga, Y. Sokona, M.D. Mastrandrea, K.J. Mach, and C. von Stechow (eds.)]. IPCC Working Group II Technical Support Unit, Carnegie Institution, Stanford, California, United States of America, pp. 75.

IPCC (2012). Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change [Field, C.B., V. Barros, T.F. Stocker, D. Qin, D.J. Dokken, K.L. Ebi, M.D. Mastrandrea, K.J. Mach, G.-K. Plattner, S.K. Allen, M. Tignor, and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, UK, and New York, NY, USA, 582 pp.

IPCC (2012). Summary for Policymakers. In: Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation [Field, C.B., V. Barros, T.F. Stocker, D. Qin, D.J. Dokken, K.L. Ebi, M.D. Mastrandrea, K.J. Mach, G.-K. Plattner, S.K. Allen, M. Tignor, and P.M. Midgley (eds.)]. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK, and New York, NY, USA, pp. 1-19.

Handmer, J., Y. Honda, Z.W. Kundzewicz, N. Arnell, G. Benito, J. Hatfield, I.F. Mohamed, P. Peduzzi, S. Wu, B. Sherstyukov, K. Takahashi, and Z. Yan (2012). Changes in impacts of climate extremes: human systems and ecosystems. In: Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation [Field, C.B., V. Barros, T.F. Stocker, D. Qin, D.J. Dokken, K.L. Ebi, M.D. Mastrandrea, K.J. Mach, G.-K. Plattner, S.K. Allen, M. Tignor, and P.M. Midgley (eds.)]. A Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change (IPCC). Cambridge University Press, Cambridge, UK, and New York, NY, USA, pp. 231-290.

2011

Mach, K. J., Tepler, S. K., Staaf, A. V., Bohnhoff, J. C., and Denny, M. W. (2011). Failure by fatigue in the field: A model of fatigue breakage for the macroalga Mazzaella, with validation. Journal of Experimental Biology 214: 1571-1585.

Denny, M. W., Dowd, W. W., Bilir, L., and Mach, K. J. (2011). Spreading the risk: Small-scale body temperature variation among intertidal organisms and its implications for species persistence. Journal of Experimental Marine Biology and Ecology 400: 175-190.

Tepler, S. K., Mach, K. J., and Denny, M. W. (2011). Preference versus performance: Body temperature of the intertidal snail, Chlorostoma funebralis. Biological Bulletin 220: 107-117.

Mastrandrea, M. D., and Mach, K. J. (2011). Treatment of uncertainties in IPCC Assessment Reports: past approaches and considerations for the Fifth Assessment Report. Climatic Change 108: 659-673.

Mastrandrea, M. D., Mach, K. J., Plattner, G.-K., Edenhofer, O., Stocker, T. F., Field, C. B., Ebi, K. L., and Matschoss, P. R. (2011). The IPCC AR5 guidance note on consistent treatment of uncertainties: a common approach across the working groups. Climatic Change 108: 675-691.

IPCC (2011). Workshop Report of the Intergovernmental Panel on Climate Change Workshop on Impacts of Ocean Acidification on Marine Biology and Ecosystems [Field, C.B., V. Barros, T.F. Stocker, D. Qin, K.J. Mach, G.-K. Plattner, M.D. Mastrandrea, M. Tignor and K.L. Ebi (eds.)]. IPCC Working Group II Technical Support Unit, Carnegie Institution, Stanford, California, United States of America, pp. 164.

2010

Mastrandrea, M. D., Field, C. B., Stocker, T. F., Edenhofer, O., Ebi, K. L., Frame, D. J., Held, H., Kriegler, E., Mach, K. J., Matschoss, P. R., Plattner, G.-K., Yohe, G. W., and Zwiers, F. W. (2010). Guidance Note for Lead Authors of the IPCC Fifth Assessment Report on Consistent Treatment of Uncertainties. Intergovernmental Panel on Climate Change (IPCC).

Helmuth, B., Yamane, L., Mach, K. J., Chhotray, S., Levin, P., and Woodin, S. (2010). All climate change is local: Understanding and predicting the effects of climate change from an organism’s point of view. Stanford Journal of Law, Science and Policy 2: 18-35.

Helmuth, B., Broitman, B. R., Yamane, L., Gilman, S. E., Mach, K., Mislan, K. A. S., and Denny, M. W. (2010). Organismal climatology: analyzing environmental variability at scales relevant to physiological stress. Journal of Experimental Biology 213: 995-1003.

Martone, P. T., Boller, M., Burgert, I., Dumais, J., Edwards, J., Mach, K., Rowe, N., Rueggeberg, M., Seidel, R., Speck, T. (2010). Mechanics without muscle: biomechanical inspiration from the plant world. Integrative and Comparative Biology 50 (5): 888-907.

2009

Harley, C. D. G., Denny, M. W., Mach, K. J., and Miller, L. P. (2009). Thermal stress and morphological adaptations in limpets. Functional Ecology 23: 292-301.

Mach, K. J. (2009). Mechanical and biological consequences of repetitive loading: crack initiation and fatigue failure in the red macroalga Mazzaella. Journal of Experimental Biology 212: 961-976.

2007

Ellis, J. C., Shulman M. J., Jessop, H., Suomala, R., Morris, S. R., Seng, V., Wagner, M., and Mach, K. (2007). Impact of raccoons on breeding success in large colonies of Great Black-backed Gulls and Herring Gulls. Waterbirds 30: 375-383.

Mach, K. J., Nelson, D. V., and Denny, M. W. (2007). Review. Techniques for predicting the lifetimes of wave- swept macroalgae: a primer on fracture mechanics and crack growth. Journal of Experimental Biology 210: 2213-2230. (Press)

Mach, K. J., Hale, B. B., Denny, M. W., and Nelson, D. V. (2007). Death by small forces: a fracture and fatigue analysis of wave-swept macroalgae. Journal of Experimental Biology 210: 2231-2243. (Press)

Miller, L. P., O’Donnell, M. J., and Mach, K. J. (2007). Dislodged but not dead: survivorship of a high intertidal snail following wave dislodgement. Journal of the Marine Biological Association of the United Kingdom 87: 735-739.