The Paris Agreement highlights the need for local climate leadership. The University Of California’s approach to deep decarbonization offers lessons in efficiency, alternative fuels and electrification. Bending the emissions curve globally requires efforts that blend academic insights with practical solutions.

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We gratefully acknowledge the TomKat Charitable Trust, which provided funding to convene our working group, and UCSB’s National Center of Ecological Analysis and Synthesis and Institute for Energy Efficiency, which co-administered the TomKat UC Carbon Neutrality project. Supplementary support was provided by the University of California Office of the President and by CITRIS and the Banatao Institute at the University of California. D.G.V. and A.A. were supported by the Deep Decarbonization Initiative of UCSD and by Electric Power Research Institute. S.J.D. was supported by NSF INFEWS Grant EAR 1639318. A.M. and R.Z.P. were supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under contract no. DE-AC02-05CH11231. We also thank the other members of the Natural Gas Exit Strategies Working Group: F. Bockmiller, J. Brouwer, C. Diamond, E. Dowey, J. Elliott, R. Eng, S. Kaffka, M. Kloss, L. McNeilly, I. Mezić, J. Morejohn, E. Ritzinger, S. Weissman and J. Williams.

TomKat Natural Gas Exit Strategies Working Group

Alan Meier10,11, Steven J. Davis8, David G. Victor1,2,3, Karl Brown7, Lisa McNeilly16, Mark Modera11, Rebecca Zarin Pass10, Jordan Sager13, David Weil14, David Auston4, Ahmed Abdulla1,2, Fred Bockmiller5, Wendell Brase5, Jack Brouwer6, Charles Diamond13, Emily Dowey17, John Elliott10, Rowena Eng13, Stephen Kaffka11, Carrie V. Kappel9, Margarita Kloss10, Igor Mezić13, Josh Morejohn11, David Phillips12, Evan Ritzinger13, Steven Weissman18 and Jim Williams19

Author information


  1. School of Global Policy & Strategy, University of California, San Diego, La Jolla, CA, USA

    • David G. Victor
    • , Ahmed Abdulla
    • , David G. Victor
    •  & Ahmed Abdulla
  2. Deep Decarbonization Initiative, University of California, San Diego, La Jolla, CA, USA

    • David G. Victor
    • , Ahmed Abdulla
    • , David G. Victor
    •  & Ahmed Abdulla
  3. The Brookings Institution, Washington, DC, USA

    • David G. Victor
    •  & David G. Victor
  4. Institute for Energy Efficiency, University of California, Santa Barbara, CA, USA

    • David Auston
    •  & David Auston
  5. Office of Sustainability, University of California, Irvine, CA, USA

    • Wendell Brase
    • , Fred Bockmiller
    •  & Wendell Brase
  6. Mechanical and Aerospace Engineering, University of California, Irvine, CA, USA

    • Jack Brouwer
    •  & Jack Brouwer
  7. Berkeley Energy and Climate Institute, CITRIS and the Banatao Institute, University of California, Berkeley, CA, USA

    • Karl Brown
    •  & Karl Brown
  8. Department of Earth System Science, University of California, Irvine, Irvine, CA, USA

    • Steven J. Davis
    •  & Steven J. Davis
  9. National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, CA, USA

    • Carrie V. Kappel
    •  & Carrie V. Kappel
  10. Lawrence Berkeley National Laboratory, Berkeley, CA, USA

    • Alan Meier
    • , Rebecca Zarin Pass
    • , Alan Meier
    • , Rebecca Zarin Pass
    • , John Elliott
    •  & Margarita Kloss
  11. University of California, Davis, CA, USA

    • Alan Meier
    • , Mark Modera
    • , Alan Meier
    • , Mark Modera
    • , Stephen Kaffka
    •  & Josh Morejohn
  12. Office of the President, University of California, Oakland, CA, USA

    • David Phillips
    •  & David Phillips
  13. University of California, Santa Barbara, CA, USA

    • Jordan Sager
    • , Jordan Sager
    • , Charles Diamond
    • , Rowena Eng
    • , Igor Mezić
    •  & Evan Ritzinger
  14. University of California, San Diego, CA, USA

    • David Weil
    •  & David Weil
  15. The City of Baltimore, Baltimore, MD, USA

    • Lisa McNeilly
  16. Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, CA, USA

    • Emily Dowey
  17. Goldman School of Public Policy, University of California Berkeley, Berkeley, CA, USA

    • Steven Weissman
  18. University of San Francisco, San Francisco, CA, USA

    • Jim Williams

Author notes

  1. A full list of authors and their affiliations appears at the end of the paper.


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    1. TomKat Natural Gas Exit Strategies Working Group

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    Correspondence to David G. Victor.

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