Consider the following: 1. Vienna Convention 2. Montreal Protocol 3. Stockholm Convention 4. Rotterdam Convention How many of the above conventions is/ are related tothe protection of the Ozone Layer? |ForumIAS

[A] One only

[B] Two Only

[C] Three only

[D] All four

Answer: B

Notes:

Explanation:

Vienna Convention (1985): Framework treaty for protecting the ozone layer, under which the Montreal Protocol was later adopted.
Montreal Protocol (1987): International agreement under the Vienna Convention to phase out ozone-depleting substances (ODS) like CFCs, halons, etc.
Stockholm Convention (2004): Concerned with Persistent Organic Pollutants (POPs) – toxic chemicals harmful to human health and environment, not directly about ozone.
Rotterdam Convention (1998): Focuses on Prior Informed Consent (PIC) for trade in hazardous chemicals and pesticides, not ozone protection.

Source: Environment ( Factly Forum IAS)