Radio 4 in Four - Good news! The hole in the ozone layer is healing - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - Good news! The hole in the ozone layer is healing - ÃÛÑ¿´«Ã½ Sounds
Good news! The hole in the ozone layer is healing
Researchers say the thinning of the ozone layer above Antarctica is starting to heal.