How Has Human-induced Climate Change Affected California Drought Risk?

Linyin Cheng, NOAA, ESRL, Boulder, CO, United States; NOAA Boulder, PSD, Boulder, CO, United States, Martin P Hoerling, NOAA Boulder, ESRL, Boulder, CO, United States, Amir Aghakouchak, University of California Irvine, The Henry Samueli School of Engineering, Irvine, CA, United States, Ben Livneh, University of Colorado at Boulder, Department of Civil, Environmental, and Architectural Engineering, Boulder, United States, Xiao-Wei Quan, NOAA Boulder, ESRL/CIRES, Boulder, CO, United States and Jon K. Eischeid, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States