Which one of the following is the main objective of Vienna Convention and Montreal Protocol?

The Vienna Convention (1985) and the Montreal Protocol (1987) are the primary international legal instruments dedicated to the protection of the Earth's ozone layer [2]. The Vienna Convention serves as a framework for international efforts to protect the ozone layer by promoting cooperation and information exchange on the effects of human activities [1]. The Montreal Protocol is a legally binding treaty designed to protect the ozone layer by phasing out the production and consumption of numerous ozone-depleting substances (ODS), such as chlorofluorocarbons (CFCs) [7]. While these treaties have secondary benefits for climate change due to the greenhouse gas nature of many ODS, their core objective remains the recovery and protection of the stratospheric ozone layer [5]. Other objectives like combating desertification are handled by the UNCCD, and climate change is primarily addressed by the UNFCCC [2].

Sources

1. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 28: International Organisation and Conventions > 28.19. VIENNA CONVENTION > p. 409
2. [2] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 5: Biodiversity and Legislations > Table 5.1 (Contd.) > p. 12
3. [4] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 5: Biodiversity and Legislations > thE montrEal Protocol. > p. 7
4. [7] https://ozone.unep.org/treaties/vienna-convention
5. [3] https://www.dcceew.gov.au/environment/protection/ozone/montreal-protocol
6. [5] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 13: Our Home: Earth, a Unique Life Sustaining Planet > Ever heard of ... > p. 224