Montreal Protocol objective – UGC NET Question

The Montreal Protocol is an international treaty specifically designed to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances such as CFCs, halons and related chemicals. By controlling these compounds, it aims to allow the stratospheric ozone layer to recover.

Option A:
Option A is incorrect because global warming from CO₂ is primarily addressed under frameworks like the UNFCCC and Kyoto Protocol, not Montreal.

Option B:
Option B is correct as it identifies depletion of the stratospheric ozone layer by CFCs and similar chemicals as the problem the Montreal Protocol targets.

Option C:
Option C is incorrect since acid rain is associated mainly with sulphur and nitrogen oxides, which are regulated by different policies and agreements.

Option D:
Option D is incorrect because heavy metal contamination of soils is outside the scope of the Montreal Protocol and is handled under other environmental regulations.