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    | Activities  are taking place around the world to address challenges relating to the ozone  layer. This website aims to provide information on key activities on the global  level. This includes information on the Ozone Secretariat, which serves as the  Secretariat for both the Vienna Convention for the Protection of the Ozone  Layer and the Montreal Protocol on Substances that Deplete the Ozone Layer; the  OzonAction Branch which assists developing countries and countries with economies  in transition to achieve compliance with the Montreal Protocol on Substances  that Deplete the Ozone Layer; the Global Environment Facility Ozone projects which  finance projects that phase out ozone depleting substances; and the Multilateral  Fund for the Implementation of the Montreal Protocol which provides funding to  help developing countries comply with obligations under the Protocol to phase  out the use of ozone-depleting substances at an agreed schedule.  |  |  |  |