The CSF occupies the subarachnoid space (between the arachnoid mater and the pia mater) and the ventricular system around and inside the brain and spinal cord. It constitutes the content of the ventricles, cisterns, and sulci of the brain, as well as the central canal of the spinal cord.
The MOST important fact is that ONLY ONE Article V application is required from each of 34 different states to require Congress to call an Article V Convention, and 49 of all 50 of the states have already filed at least ONE Article V application.
The Paris Agreement was opened for signature on 22 April 2016 at a high-level signature ceremony convened by the Secretary General in New York. At that ceremony, 174 States and the European Union signed the agreement and 15 States also deposited their instruments of ratification. As of 29 June 2016, there are 178 signatories to the Paris Agreement.