Climatic Change

, Volume 87, Supplement 1, pp 7–20

Linking climate change science with policy in California

  • Guido Franco
  • Dan Cayan
  • Amy Luers
  • Michael Hanemann
  • Bart Croes


Over the last few years, California has passed some of the strongest climate policies in the USA. These new policies have been motivated in part by increasing concerns over the risk of climate-related impacts and facilitated by the state’s existing framework of energy and air quality policies. This paper presents an overview of the evolution of this increased awareness of climate change issues by policy makers brought about by the strong link between climate science and policy in the state. The State Legislature initiated this link in 1988 with the mandate to prepare an assessment of the potential consequences of climate change to California. Further interactions between science and policy has more recently resulted, in summer of 2006, in the passage of Assembly Bill 32, a law that limits future greenhouse gas emissions in California. This paper discusses the important role played by a series of state and regional climate assessments beginning in 1988 and, in particular, the lessons learned from a recently completed study known as the Scenarios Project.


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  1. Barnett TP, Pennell W (eds) (2004) Impact of global warming on Western US water supplies. Clim. Change 62 (Spec. Vol.)Google Scholar
  2. Boyd J (2006) California Energy Commissioner. Statement at the Climate Change Science Meeting, Sacramento, September 13, 2006.
  3. CAT (2006) Climate Action Team Report to Governor Schwarzenegger and the Legislature. March.
  4. Cayan D, Luers A, Hanemann M, Franco G, Croes B (2006) Scenarios of climate change in California: an overview. FINAL report from California Energy Commission, Public Interest Energy Research (PIER) Program, California Climate Change Center, Publication no. CEC-500-2005-186-SF, posted February 27, 2006.
  5. California Climate Change Center (2006) Our changing climate. Assessing the risks to California. A summary report from the California Climate Change Center. CEC-500-2006-077Google Scholar
  6. California Energy Commission (CEC) (1989). The impacts of global warming in California. (P500-89-004)Google Scholar
  7. California Energy Commission (CEC) (1991) Global climate change: potential impacts and policy recommendations”Google Scholar
  8. CEC (1998a) Historical and forecasted greenhouse gas emissions inventories for California. January. P500-98-001V3Google Scholar
  9. CEC (1998b) Greenhouse gas emissions reduction strategies for California. January. P500-98-001V1Google Scholar
  10. CEC (2002) Inventory of California greenhouse gas emissions and sinks: 1990–1999. November. Publication #600-02-001FGoogle Scholar
  11. CEC (2005a) Inventory of California greenhouse gas emissions and sinks: 1990 to 2002 update. June. CEC-600-2005-025Google Scholar
  12. CEC (2005b) Integrated energy policy report. November. CEC-100-2005-007CMFGoogle Scholar
  13. CEC (2007) In the public interest developing affordable, clean, and smart energy for the 21st century California. (CEC-500-2007-020-SD). March. Page 72Google Scholar
  14. DWR (2006) California Water Plan. Update 2005. Department of Water ResourcesGoogle Scholar
  15. Field C et al (1999) Confronting climate change in California ecological impacts on the Golden State. The Union of Concerned Scientists and The Ecological Society of AmericaGoogle Scholar
  16. Gleick PH (1986) Methods for evaluating the regional hydrologic impacts of global climatic changes. J Hydrol 88:97–116CrossRefGoogle Scholar
  17. Gleick PH (1987) Regional hydrologic consequences of increases in atmospheric carbon dioxide and other trace gases. Clim Change 10(2):137–161CrossRefGoogle Scholar
  18. Hanemann WM (2007) How California came to pass AB32, the Global Warming Solutions Act of 2006. ARE Working Paper. University of California BerkeleyGoogle Scholar
  19. Hayhoe K, Cayan D et al (2004) Emissions pathways, climate change, and impacts on California. Proc Natl Acad Sci U S A 101(34):12422–12427CrossRefGoogle Scholar
  20. Knowles N, Cayan DR (2002) Potential effects of global warming on the Sacramento/San Joaquin watershed and the San Francisco estuary. Geophys Res Lett 29(18):1891CrossRefGoogle Scholar
  21. Morgan MG, Cantor R, Clark WC, Fisher A, Jacoby HD, Janetos AC, Kinzig AP, Melillo J, Street RB, Wilbanks TJ (2005) Learning from the U.S. National Assessment of Climate Change Impacts. Environ Sci Technol Policy Anal 39(23):9023–9032Google Scholar
  22. PPIC (2000) Statewide survey: special survey on the environment. Public Policy Institute of California. June 2000Google Scholar
  23. PPIC (2006) Statewide survey: special survey on the environment. Public Policy Institute of California. July 2006Google Scholar
  24. Roos M (1991) A trend of decreasing snowmelt runoff in northern California. Proc. 59th Western Snow Conf., Juneau, AK, 29–36Google Scholar
  25. USGCRP (2001) Climate change impacts on the United States. The potential consequences of climate variability and change. A report of the National Assessment Synthesis Team. US Global Change Research Program.
  26. USGCRP (2002) The potential consequences of climate variability and change for California. The California Regional Assessment.
  27. Wilson T, Williams L, Smith J, Mendelsohn R (2003) Global climate change and California: Potential implications for ecosystems, eealth, and the economy. Publication Number: 500-03-058CF.

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Guido Franco
    • 1
  • Dan Cayan
    • 2
  • Amy Luers
    • 3
  • Michael Hanemann
    • 4
  • Bart Croes
    • 5
  1. 1.Public Interest Energy Research ProgramCalifornia Energy CommissionSacramentoUSA
  2. 2.Climate Research DivisionScripps Institution of OceanographyLa JollaUSA
  3. 3.California Climate ProgramUnion of Concerned ScientistsBerkeleyUSA
  4. 4.Department of Agricultural & Resource EconomicsUniversity of California, BerkeleyBerkeleyUSA
  5. 5.Research DivisionAir Resources BoardSacramentoUSA

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