The global agreement on specific control strategies to reduce the release of ozone depleting substances is ___.

The correct option is B Montreal Protocol

The Montreal Protocol on substances that deplete the ozone layer is a landmark international agreement designed to protect the stratospheric ozone layer. The treaty was originally signed in 1987 (effected in 1989) and substantially amended in 1990 and 1992. The Montreal Protocol stipulates that the production and consumption of compounds that deplete the stratospheric ozone layer, such as chlorofluorocarbons (CFCs), halogens, carbon tetrachloride and methyl chloroform, are to be phased out.