Despite what Governor of California Jerry Brown wants in relation to his state concerning the Paris Accord, states are not allowed to make foreign treaties. That power was delegated to the federal government under the Constitution.  The U.S. Constitution is a Contract between the States. The Central, Federal, government is the product of that contract. Certain limited powers are granted to the federal government, with all remaining powers reserved to the states. Making foreign treaties is NOT a power reserved to the States. Learn more in this episode of Liberty Matters: