Ozone hole reaches record proportions
Just when we thought it was getting smaller, the hole in the ozone layer has reached record proportions. Between 21 and 30 September, the average area of the hole reached 27.5 million square kilometres, according to scientists monitoring ozone levels over the South Pole using NASA's Aura satellite and balloon-borne instruments. This marks an increase of roughly 3.9 million square kilometres from last year.