Vom 8. Mรคrz 1988:
A sharp increase in methane gas in the atmosphere since 1978 will probably make the earth warmer and may worsen seasonal losses of protective ozone over Antarctica, scientists say.
https://www.nytimes.com/1988/03/08/science/methane-up-sharply-ozone-impact-studied.html
"Antarktis Ozonloch dieses Jahr ungewรถhnlich groร"