By Gloria Goodale
As California faces the worst drought in its 163-year history with no hint of relief in sight, some scientists are calling the event a red flag for the future of the nation.
Gov. Jerry Brown raised the issue in his State of the State address Wednesday, saying “we do not know how much our current problem derives from the build-up of heat-trapping gasses, but we can take this drought as a stark warning of things to come.”
