
A team led by researchers from ETH Zurich and the Physikalisch-Meteorologisches Observatorium Davos in Switzerland have found that despite the ban on CFCs, the concentration of ozone in the lower part of the stratosphere has continued to decline at latitudes between 60 degrees South and 60 degrees North.
The scientists were somewhat surprised that the ozone is thinning out in the lower stratosphere because their models do not show this trend and CFCs continue to decline. — Press Trust of India, 6 February 2018













