Rationale and definition:

This indicator measures the consumption trends for ozone-depleting substances (ODS) controlled under the Montreal Protocol on Substances that Deplete the Ozone Layer, thereby allowing inference of the amounts of ODS being eliminated as a result of the protocol. It is expressed in ODP Tons, which is defined as the Metric Tons of ODSs weighted by their Ozone Depletion Potential (ODP).¹

Comments and limitations:

The Montreal and the Vienna Convention for the Protection of the Ozone Layer target the complete phase-out of use of ODS.

Preliminary assessment of current data availability by Friends of the Chair:

A

Primary data source:

Administrative data.

Potential lead agency or agencies:

UNEP Ozone Secretariat.