The Montreal Protocol on Substances that Deplete the Ozone Layer is one of the most successful examples of multilateral environmental agreements, according to WMO Secretary-General Michel Jarraud. The number of ratifications — 197 — represent a record in the history of the United Nations and it has contributed to a reduction of 97% in the global use of ozone depleting substances.
In an address to the Meeting of the Parties to the Montreal Protocol – and coinciding with its 25th anniversary _ Mr Jarraud explained the essential role of WMO in coordinating observations of and research on the ozone layer through a global network of ozone monitoring stations and satellites. He also discussed the role of climate change on the state of the ozone lazer.
“In spite of the efforts to phase out ozone depleting substances, global warming may well lead to a weaker ozone layer in the tropics. In addition, nitrous oxide (N2O), one of the most important long-lived greenhouse gases, and whose atmospheric burden is increasing steadily, might represent a threat to the ozone layer later this century. There is also evidence that the annually recurring Antarctic ozone hole has a direct influence on the surface climate in Antarctica,” said Mr Jarraud.
He said that this reinforced the need for a global mechanism to enable the systematic production and application of climate services in a coordinated and integrated way. The Global Framework for Climate Services, will build on existing initiatives and infrastructure to address the full value chain from observations, research, prediction and product development to service delivery and application in support of decision-making in climate sensitive sectors. An extraordinary session of the World Meteorological Congress in October approved the governance structure and implementation plan of the GFCS.