As reported in The Toronto Star, “the quality of air and river waters has improved in Europe and North America, and checks on chemical emissions have made it possible for recovery of ozone layer damage. ”
Sebagaimana dilaporkan dalam The Toronto Star, ” mutu udara dan air sungai di Eropa dan Amerika Utara telah membaik, dan pembatasan emisi bahan kimia telah memungkinkan pemulihan lapisan ozon yang rusak ”.