Ozone has been vital for sustaining life and making earth habitable. Without Ozone
life on earth would be restricted only to the oceans. Ozone provided the shield and
allowed life to leave ocean and populate land.

Anthropogenic activities during the
Industrial revolution led to emissions of certain ozone destructing gases such as
CFCs and other chlorine and bromine containing species in the atmosphere.
Results were significant decrease in stratospheric ozone levels, especially over
Antarctic during spring.

My research explores the chemistry and dynamics of
stratospheric ozone layer. I am examining long-term changes in the Earth’s ozone
layer and how such changes may influence climate. I analyse different satellite and
ground based observations seeking for signs of recovery in ozone levels. My
research focus is on estimation and attribution of long-term trends of stratospheric
trace species like O3, HCl, ClO measured from various satellite observations.

I am closely investigating chlorine as an ozone destructing species, as well. This is
because a single chlorine atom has the capacity to destroy thousands of ozone
molecules.