Abstract

OZONE LAYER DEPLETION AND CLIMATE CHANGE INTERACTIONS

Dr. Baliram Pd. Singh*

ABSTRACT

Ozone layer depletion and climate change interact through complex atmospheric and chemical processes. While ozone depletion mainly occurs in the stratosphere by Cl and Br containing gases causing cooling of the Earth's surface, tropospheric ozone increases caused by pollution contribute to warming, affecting climate systems. Certain ozone depleting substances (ODS) such as chlorofluorocarbons (CFCs) are also potent greenhouse gases, linking the two issues. Ozone depletion leads to stratospheric cooling, which disrupts atmospheric circulation patterns, influencing surface weather and climate, especially in polar regions. Climate change, driven mainly by carbon dioxide and other greenhouse gases, also impacts ozone levels through feedback mechanisms involving atmospheric transport and chemistry. Efforts to mitigate ozone depletion via the Montreal Protocol have contributed tomanaging some climate impacts, but alternatives like hydrofluorocarbons (HFCs) require careful environmental consideration due to their greenhouse gas potential. Understanding and addressing the interplay between ozone depletion and climate change is essential for effective environmental policies and climate mitigation strategies.

Keywords: Ozone layer depletion, ODSs, CFCs, climate change, Montreal Protocol.