Ozone Hole Shrinking

The scientists hope that if the current trends are followed, the ozone layer is expected to recover to 1980 levels by the year 2040.

The hole in the ozone layer over the Antarctic has begun to shrink, signalling good news for the environment decades after an international accord to phase out certain pollutants, researchers said Thursday.

The scientists hope that if the current trends are followed, the ozone layer is expected to recover to 1980 levels by the year 2040.

The hole in the ozone layer over the Antarctic has begun to shrink, signalling good news for the environment decades after an international accord to phase out certain pollutants, researchers said Thursday.