No.
> No State shall, without the Consent of Congress, lay any duty of Tonnage, keep Troops, or Ships of War in time of Peace, enter into any Agreement or Compact with another State, or with a foreign Power, or engage in War, unless actually invaded, or in such imminent Danger as will not admit of delay.
Foreign policy is reserved for the federal government, is it not?
Not a lawyer, but California may deem the exiting of the Paris agreement at a Federal level imminent Danger to their citizens.