Ozone layer recovery could be delayed by 30 years: Study
Increasing emissions of harmful chemicals could delay the recovery of the ozone layer by another 30 years, UK-based researchers said. This comes after the 197-nation Montreal Protocol to ban the production of ozone-depleting substances, completed 30 years. However, chemicals like short-lived chlorocarbons not regulated by the treaty are responsible for the delay in recovery, said researchers.