Final answer:
The ability of a substance to destroy ozone in the stratosphere is referred to as Ozone Depletion Potential (ODP). This measurement indicates how destructive a substance can be to the ozone layer, with substances like CFCs having a high ODP and being targeted by the Montreal Protocol for phase-out.
Step-by-step explanation:
The ability of a substance to destroy ozone in the stratosphere is referred to as Ozone Depletion Potential (ODP). Substances with a higher ODP are more effective at destroying ozone and have a more significant impact on the ozone layer. Ozone Depleting Substances (ODS) include chemicals like chlorofluorocarbons (CFCs), which release chlorine or bromine when exposed to UV light, leading to the breakdown of ozone molecules. The Montreal Protocol was an international effort to phase out the production and use of CFCs and other harmful substances to protect the stratospheric ozone layer, which is crucial for blocking harmful ultraviolet radiation from the Sun.