Ozone hole nears record-breaking size again

2011 Japan tsunami unleashed ozone-destroying chemicals

Nacreous clouds illuminate the twilight sky

Earth's protective ozone layer shows signs of recovery

'Everlasting storm' has 1 million lightning strikes a year

Arctic's ozone hole is looking good

New ozone-destroying chemicals discovered in atmosphere

What is PFTBA? Greenhouse gas is 7,000 times as potent as CO2

Ozone hole won't heal until 2070, says NASA

Global warming isn't on 'hiatus'

What you don't know about the Antarctic ozone hole

Ozone hole over Antarctica caused Africa's warming