This was an agreement to freeze production and consumption of ozonedepleting substances at then current rates. This page summarizes the history of international cooperation on the protection of the ozone layer, including: the Vienna Convention; the Montreal Protocol.Agreement with observations when ozone depletion is taken into account. • Radiative forcings and Global Warming Potentials (GWPs) are now available for an. It provides for internationally coordinated control of ozonedepleting substances in order to protect a vital global resource. " The hole stretched millions of miles over an area. Not to be confused with NSF International. Can a thinking, remembering, decision-making, biologically accurate brain be built from a supercomputer?