1. Srebotnjak, Tanja and Miriam Rotkin-Ellman, “Drilling in California: Who’s at risk?,” Natural Resources Defense Council, October 2014, p. 4. https://www.nrdc.org/sites/default/files/california-fracking-risks-report.pdf
2. California Air Resources Board, “California’s 2017 Climate Change Scoping Plan,” November 2017, p. 7. https://www.arb.ca.gov/cc/scopingplan/scoping_plan_2017.pdf?_ga=2.253665481.1304555220.1515158610-304097323.1509477659
3. Oil Stain. How Dirty Crude Undercuts California’s Climate Progress. Center for Biological Diversity. November 2017. https://www.biologicaldiversity.org/programs/climate_law_institute/energy_and_global_warming/pdfs/Oil_Stain.pdf
4. Jacobson, Mark Z. et al. “A roadmap for repowering California for all purposes with wind, water, and sunlight.” Energy (2014). https://web.stanford.edu/group/efmh/jacobson/Articles/I/CaliforniaWWS.pdf
5. U.S. Bureau of Economic Analysis, “Gross domestic product (GDP) by state (millions of current dollars),” January 24, 2018. https://www.bea.gov/iTable/index_regional.cfm
6. U.S. Bureau of Labor Statistics (BLS) and California Employment Development Department’s (EDD) Labor Market Information Division, “Quarterly Census of Employment and Wages: Industry Information,” industry codes 211 (Oil and gas extraction) and 213 (Support activities for mining), accessed April 2018. https://data.edd.ca.gov/Industry-Information-/Quarterly-Census-of-Employment-and-Wages-QCEW-/fisq-v939
7. California Council on Science and Technology (CCST), “An Independent Scientific Assessment of Well Stimulation in California: An Examination of Hydraulic Fracturing and Acid Stimulations in the Oil and Gas Industry – Summary Report, “ July 2015, p. 63. https://ccst.us/publications/2015/2015SB4summary.pdf
8. Oil Change International. The Sky’s Limit California: Why the Paris Climate Goals Demand that California Lead in a Managed Decline of Oil Extraction. May 2018. http://priceofoil.org/content/uploads/2018/05/Skys_Limit_California_Oil_Production_R2.pdf